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Vulnerability Details :

CVE-2020-9491

Summary
Assigner-apache
Assigner Org ID-f0158376-9dc2-43b6-827c-5f631a4d8d09
Published At-01 Oct, 2020 | 19:57
Updated At-04 Aug, 2024 | 10:26
Rejected At-
Credits

In Apache NiFi 1.2.0 to 1.11.4, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by processors like ListenHTTP, HandleHttpRequest, etc. However intracluster communication such as cluster request replication, Site-to-Site, and load balanced queues continued to support TLS v1.0 or v1.1.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:apache
Assigner Org ID:f0158376-9dc2-43b6-827c-5f631a4d8d09
Published At:01 Oct, 2020 | 19:57
Updated At:04 Aug, 2024 | 10:26
Rejected At:
▼CVE Numbering Authority (CNA)

In Apache NiFi 1.2.0 to 1.11.4, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by processors like ListenHTTP, HandleHttpRequest, etc. However intracluster communication such as cluster request replication, Site-to-Site, and load balanced queues continued to support TLS v1.0 or v1.1.

Affected Products
Vendor
n/a
Product
Apache NiFi
Versions
Affected
  • Apache NiFi 1.2.0 to 1.11.4
Problem Types
TypeCWE IDDescription
textN/AUse of weak TLS protocols
Type: text
CWE ID: N/A
Description: Use of weak TLS protocols
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://nifi.apache.org/security#CVE-2020-9491
x_refsource_MISC
https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf%40%3Ccommits.nifi.apache.org%3E
mailing-list
x_refsource_MLIST
https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718%40%3Ccommits.nifi.apache.org%3E
mailing-list
x_refsource_MLIST
Hyperlink: https://nifi.apache.org/security#CVE-2020-9491
Resource:
x_refsource_MISC
Hyperlink: https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf%40%3Ccommits.nifi.apache.org%3E
Resource:
mailing-list
x_refsource_MLIST
Hyperlink: https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718%40%3Ccommits.nifi.apache.org%3E
Resource:
mailing-list
x_refsource_MLIST
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://nifi.apache.org/security#CVE-2020-9491
x_refsource_MISC
x_transferred
https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf%40%3Ccommits.nifi.apache.org%3E
mailing-list
x_refsource_MLIST
x_transferred
https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718%40%3Ccommits.nifi.apache.org%3E
mailing-list
x_refsource_MLIST
x_transferred
Hyperlink: https://nifi.apache.org/security#CVE-2020-9491
Resource:
x_refsource_MISC
x_transferred
Hyperlink: https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf%40%3Ccommits.nifi.apache.org%3E
Resource:
mailing-list
x_refsource_MLIST
x_transferred
Hyperlink: https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718%40%3Ccommits.nifi.apache.org%3E
Resource:
mailing-list
x_refsource_MLIST
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@apache.org
Published At:01 Oct, 2020 | 20:15
Updated At:07 Nov, 2023 | 03:26

In Apache NiFi 1.2.0 to 1.11.4, the NiFi UI and API were protected by mandating TLS v1.2, as well as listening connections established by processors like ListenHTTP, HandleHttpRequest, etc. However intracluster communication such as cluster request replication, Site-to-Site, and load balanced queues continued to support TLS v1.0 or v1.1.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Primary2.05.0MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N
Type: Primary
Version: 3.1
Base score: 7.5
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Type: Primary
Version: 2.0
Base score: 5.0
Base severity: MEDIUM
Vector:
AV:N/AC:L/Au:N/C:P/I:N/A:N
CPE Matches

The Apache Software Foundation
apache
>>nifi>>Versions from 1.0.0(inclusive) to 1.11.4(inclusive)
cpe:2.3:a:apache:nifi:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-327Primarynvd@nist.gov
CWE ID: CWE-327
Type: Primary
Source: nvd@nist.gov
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718%40%3Ccommits.nifi.apache.org%3Esecurity@apache.org
N/A
https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf%40%3Ccommits.nifi.apache.org%3Esecurity@apache.org
N/A
https://nifi.apache.org/security#CVE-2020-9491security@apache.org
Vendor Advisory
Hyperlink: https://lists.apache.org/thread.html/r2d9c21f9ec35d66f2bb42f8abe876dabd786166b6284e9a33582c718%40%3Ccommits.nifi.apache.org%3E
Source: security@apache.org
Resource: N/A
Hyperlink: https://lists.apache.org/thread.html/re48582efe2ac973f8cff55c8b346825cb491c71935e15ab2d61ef3bf%40%3Ccommits.nifi.apache.org%3E
Source: security@apache.org
Resource: N/A
Hyperlink: https://nifi.apache.org/security#CVE-2020-9491
Source: security@apache.org
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
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||
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The implementation of POST with the username and password in the URL parameters exposed the credentials. More infomration is available in fineract jira issues 726 and 629.

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Assigner-Apache Software Foundation
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Matching Score-8
Assigner-Apache Software Foundation
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||
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Product-iotdbApache IoTDB
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CVE-2019-10083
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-5.3||MEDIUM
EPSS-2.75% / 84.67%
||
7 Day CHG~0.00%
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Updated-04 Aug, 2024 | 22:10
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KEV Added-Not Available
KEV Action Due Date-Not Available

When updating a Process Group via the API in NiFi versions 1.3.0 to 1.9.2, the response to the request includes all of its contents (at the top most level, not recursively). The response included details about processors and controller services which the user may not have had read access to.

Action-Not Available
Vendor-n/aThe Apache Software Foundation
Product-nifiApache NiFi
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2022-40604
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.63% / 73.78%
||
7 Day CHG+0.06%
Published-21 Sep, 2022 | 07:25
Updated-27 May, 2025 | 19:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Format String Vulnerability

In Apache Airflow 2.3.0 through 2.3.4, part of a url was unnecessarily formatted, allowing for possible information extraction.

Action-Not Available
Vendor-The Apache Software Foundation
Product-airflowApache Airflow
CWE ID-CWE-134
Use of Externally-Controlled Format String
CVE-2023-44312
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-5.8||MEDIUM
EPSS-0.81% / 53.29%
||
7 Day CHG~0.00%
Published-31 Jan, 2024 | 08:49
Updated-30 May, 2025 | 18:39
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache ServiceComb Service-Center: attacker can query all environment variables of the service-center server

Exposure of Sensitive Information to an Unauthorized Actor in Apache ServiceComb Service-Center.This issue affects Apache ServiceComb Service-Center before 2.1.0 (include). Users are recommended to upgrade to version 2.2.0, which fixes the issue.

Action-Not Available
Vendor-The Apache Software Foundation
Product-servicecombApache ServiceComb Service-Center
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2014-0043
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-5.3||MEDIUM
EPSS-3.01% / 85.99%
||
7 Day CHG~0.00%
Published-02 Oct, 2017 | 13:00
Updated-13 May, 2026 | 00:24
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In Apache Wicket 1.5.10 or 6.13.0, by issuing requests to special urls handled by Wicket, it is possible to check for the existence of particular classes in the classpath and thus check whether a third party library with a known security vulnerability is in use.

Action-Not Available
Vendor-The Apache Software Foundation
Product-wicketApache Wicket
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2023-41752
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.22% / 65.52%
||
7 Day CHG~0.00%
Published-17 Oct, 2023 | 06:57
Updated-12 Jun, 2025 | 15:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Traffic Server: s3_auth plugin problem with hash calculation

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Traffic Server.This issue affects Apache Traffic Server: from 8.0.0 through 8.1.8, from 9.0.0 through 9.2.2. Users are recommended to upgrade to version 8.1.9 or 9.2.3, which fixes the issue.

Action-Not Available
Vendor-apache_software_foundationFedora ProjectThe Apache Software Foundation
Product-traffic_serverfedoraApache Traffic Serverapache_traffic_server
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2020-17527
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-24.62% / 97.66%
||
7 Day CHG~0.00%
Published-03 Dec, 2020 | 18:30
Updated-13 Feb, 2025 | 16:27
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Tomcat: Request header mix-up between HTTP/2 streams

While investigating bug 64830 it was discovered that Apache Tomcat 10.0.0-M1 to 10.0.0-M9, 9.0.0-M1 to 9.0.39 and 8.5.0 to 8.5.59 could re-use an HTTP request header value from the previous stream received on an HTTP/2 connection for the request associated with the subsequent stream. While this would most likely lead to an error and the closure of the HTTP/2 connection, it is possible that information could leak between requests.

Action-Not Available
Vendor-Oracle CorporationNetApp, Inc.Debian GNU/LinuxThe Apache Software Foundation
Product-debian_linuxelement_plug-inblockchain_platformsd-wan_edgemysql_enterprise_monitorinstantis_enterprisetrackoncommand_system_managercommunications_cloud_native_core_binding_support_functiontomcatcommunications_instant_messaging_servercommunications_cloud_native_core_policyworkload_managerApache Tomcat
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2025-27817
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-64.68% / 99.16%
||
7 Day CHG+1.04%
Published-10 Jun, 2025 | 07:55
Updated-11 Jul, 2025 | 16:58
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Kafka Client: Arbitrary file read and SSRF vulnerability

A possible arbitrary file read and SSRF vulnerability has been identified in Apache Kafka Client. Apache Kafka Clients accept configuration data for setting the SASL/OAUTHBEARER connection with the brokers, including "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url". Apache Kafka allows clients to read an arbitrary file and return the content in the error log, or sending requests to an unintended location. In applications where Apache Kafka Clients configurations can be specified by an untrusted party, attackers may use the "sasl.oauthbearer.token.endpoint.url" and "sasl.oauthbearer.jwks.endpoint.url" configuratin to read arbitrary contents of the disk and environment variables or make requests to an unintended location. In particular, this flaw may be used in Apache Kafka Connect to escalate from REST API access to filesystem/environment/URL access, which may be undesirable in certain environments, including SaaS products. Since Apache Kafka 3.9.1/4.0.0, we have added a system property ("-Dorg.apache.kafka.sasl.oauthbearer.allowed.urls") to set the allowed urls in SASL JAAS configuration. In 3.9.1, it accepts all urls by default for backward compatibility. However in 4.0.0 and newer, the default value is empty list and users have to set the allowed urls explicitly.

Action-Not Available
Vendor-The Apache Software Foundation
Product-kafkaApache Kafka Client
CWE ID-CWE-918
Server-Side Request Forgery (SSRF)
CVE-2023-41081
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.26% / 66.49%
||
7 Day CHG~0.00%
Published-13 Sep, 2023 | 09:30
Updated-25 Sep, 2024 | 18:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Tomcat Connectors: Unexpected use of first declared worker in mod_jk for unmapped request

Important: Authentication Bypass CVE-2023-41081 The mod_jk component of Apache Tomcat Connectors in some circumstances, such as when a configuration included "JkOptions +ForwardDirectories" but the configuration did not provide explicit mounts for all possible proxied requests, mod_jk would use an implicit mapping and map the request to the first defined worker. Such an implicit mapping could result in the unintended exposure of the status worker and/or bypass security constraints configured in httpd. As of JK 1.2.49, the implicit mapping functionality has been removed and all mappings must now be via explicit configuration. Only mod_jk is affected by this issue. The ISAPI redirector is not affected. This issue affects Apache Tomcat Connectors (mod_jk only): from 1.2.0 through 1.2.48. Users are recommended to upgrade to version 1.2.49, which fixes the issue. History 2023-09-13 Original advisory 2023-09-28 Updated summary

Action-Not Available
Vendor-The Apache Software Foundation
Product-tomcat_connectorsApache Tomcat Connectorstomcat_connectors
CVE-2023-39553
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.78% / 75.90%
||
7 Day CHG~0.00%
Published-11 Aug, 2023 | 07:18
Updated-13 Feb, 2025 | 17:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Airflow Drill Provider Arbitrary File Read Vulnerability

Improper Input Validation vulnerability in Apache Software Foundation Apache Airflow Drill Provider. Apache Airflow Drill Provider is affected by a vulnerability that allows an attacker to pass in malicious parameters when establishing a connection with DrillHook giving an opportunity to read files on the Airflow server. This issue affects Apache Airflow Drill Provider: before 2.4.3. It is recommended to upgrade to a version that is not affected.

Action-Not Available
Vendor-The Apache Software Foundation
Product-apache-airflow-providers-apache-drillApache Airflow Drill Providerapache-airflow-providers-apache-drill
CWE ID-CWE-20
Improper Input Validation
CVE-2023-40272
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.67% / 74.33%
||
7 Day CHG~0.00%
Published-17 Aug, 2023 | 13:52
Updated-13 Feb, 2025 | 17:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Airflow Spark Provider Arbitrary File Read via JDBC

Apache Airflow Spark Provider, versions before 4.1.3, is affected by a vulnerability that allows an attacker to pass in malicious parameters when establishing a connection giving an opportunity to read files on the Airflow server. It is recommended to upgrade to a version that is not affected.

Action-Not Available
Vendor-The Apache Software Foundation
Product-apache-airflow-providers-apache-sparkApache Airflow Spark Providerapache-airflow-providers-apache-drill
CWE ID-CWE-20
Improper Input Validation
CVE-2012-5885
Matching Score-8
Assigner-MITRE Corporation
ShareView Details
Matching Score-8
Assigner-MITRE Corporation
CVSS Score-5||MEDIUM
EPSS-8.98% / 94.71%
||
7 Day CHG~0.00%
Published-17 Nov, 2012 | 19:00
Updated-29 Apr, 2026 | 01:13
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The replay-countermeasure functionality in the HTTP Digest Access Authentication implementation in Apache Tomcat 5.5.x before 5.5.36, 6.x before 6.0.36, and 7.x before 7.0.30 tracks cnonce (aka client nonce) values instead of nonce (aka server nonce) and nc (aka nonce-count) values, which makes it easier for remote attackers to bypass intended access restrictions by sniffing the network for valid requests, a different vulnerability than CVE-2011-1184.

Action-Not Available
Vendor-n/aThe Apache Software Foundation
Product-tomcatn/a
CVE-2025-55753
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-0.42% / 34.20%
||
7 Day CHG~0.00%
Published-05 Dec, 2025 | 10:12
Updated-10 Dec, 2025 | 16:39
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache HTTP Server: mod_md (ACME), unintended retry intervals

An integer overflow in the case of failed ACME certificate renewal leads, after a number of failures (~30 days in default configurations), to the backoff timer becoming 0. Attempts to renew the certificate then are repeated without delays until it succeeds. This issue affects Apache HTTP Server: from 2.4.30 before 2.4.66. Users are recommended to upgrade to version 2.4.66, which fixes the issue.

Action-Not Available
Vendor-The Apache Software Foundation
Product-http_serverApache HTTP Server
CWE ID-CWE-190
Integer Overflow or Wraparound
CVE-2012-5641
Matching Score-8
Assigner-Red Hat, Inc.
ShareView Details
Matching Score-8
Assigner-Red Hat, Inc.
CVSS Score-5||MEDIUM
EPSS-8.95% / 94.69%
||
7 Day CHG~0.00%
Published-18 Mar, 2014 | 14:00
Updated-06 May, 2026 | 22:30
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Directory traversal vulnerability in the partition2 function in mochiweb_util.erl in MochiWeb before 2.4.0, as used in Apache CouchDB before 1.0.4, 1.1.x before 1.1.2, and 1.2.x before 1.2.1, allows remote attackers to read arbitrary files via a ..\ (dot dot backslash) in the default URI.

Action-Not Available
Vendor-mochiweb_projectn/aThe Apache Software Foundation
Product-mochiwebcouchdbn/a
CWE ID-CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2022-30556
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-4.69% / 90.83%
||
7 Day CHG~0.00%
Published-08 Jun, 2022 | 10:00
Updated-01 May, 2025 | 15:35
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Information Disclosure in mod_lua with websockets

Apache HTTP Server 2.4.53 and earlier may return lengths to applications calling r:wsread() that point past the end of the storage allocated for the buffer.

Action-Not Available
Vendor-Fedora ProjectNetApp, Inc.The Apache Software Foundation
Product-http_serverfedoraclustered_data_ontapApache HTTP Server
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2022-29265
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-2.50% / 83.01%
||
7 Day CHG~0.00%
Published-30 Apr, 2022 | 08:05
Updated-03 Aug, 2024 | 06:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Improper Restriction of XML External Entity References in Multiple Components

Multiple components in Apache NiFi 0.0.1 to 1.16.0 do not restrict XML External Entity references in the default configuration. The Standard Content Viewer service attempts to resolve XML External Entity references when viewing formatted XML files. The following Processors attempt to resolve XML External Entity references when configured with default property values: - EvaluateXPath - EvaluateXQuery - ValidateXml Apache NiFi flow configurations that include these Processors are vulnerable to malicious XML documents that contain Document Type Declarations with XML External Entity references. The resolution disables Document Type Declarations in the default configuration for these Processors, and disallows XML External Entity resolution in standard services.

Action-Not Available
Vendor-The Apache Software Foundation
Product-nifiApache NiFi
CWE ID-CWE-611
Improper Restriction of XML External Entity Reference
CVE-2025-49125
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-3.28% / 87.12%
||
7 Day CHG+0.11%
Published-16 Jun, 2025 | 14:18
Updated-03 Nov, 2025 | 20:19
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Tomcat: Security constraint bypass for pre/post-resources

Authentication Bypass Using an Alternate Path or Channel vulnerability in Apache Tomcat.  When using PreResources or PostResources mounted other than at the root of the web application, it was possible to access those resources via an unexpected path. That path was likely not to be protected by the same security constraints as the expected path, allowing those security constraints to be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.7, from 10.1.0-M1 through 10.1.41, from 9.0.0.M1 through 9.0.105. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 through 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.8, 10.1.42 or 9.0.106, which fix the issue.

Action-Not Available
Vendor-The Apache Software Foundation
Product-tomcatApache Tomcat
CWE ID-CWE-288
Authentication Bypass Using an Alternate Path or Channel
CVE-2022-27949
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.68% / 74.52%
||
7 Day CHG~0.00%
Published-14 Nov, 2022 | 00:00
Updated-30 Apr, 2025 | 20:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Airflow prior to 2.3.1 may include sensitive values in rendered template

A vulnerability in UI of Apache Airflow allows an attacker to view unmasked secrets in rendered template values for tasks which were not executed (for example when they were depending on past and previous instances of the task failed). This issue affects Apache Airflow prior to 2.3.1.

Action-Not Available
Vendor-The Apache Software Foundation
Product-airflowApache Airflow
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2022-28330
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-5.3||MEDIUM
EPSS-3.40% / 87.59%
||
7 Day CHG~0.00%
Published-08 Jun, 2022 | 10:00
Updated-03 Aug, 2024 | 05:48
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
read beyond bounds in mod_isapi

Apache HTTP Server 2.4.53 and earlier on Windows may read beyond bounds when configured to process requests with the mod_isapi module.

Action-Not Available
Vendor-The Apache Software FoundationMicrosoft Corporation
Product-http_serverwindowsApache HTTP Server
CWE ID-CWE-125
Out-of-bounds Read
CVE-2022-28614
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-5.3||MEDIUM
EPSS-4.43% / 90.37%
||
7 Day CHG~0.00%
Published-08 Jun, 2022 | 10:00
Updated-03 Aug, 2024 | 05:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
read beyond bounds via ap_rwrite()

The ap_rwrite() function in Apache HTTP Server 2.4.53 and earlier may read unintended memory if an attacker can cause the server to reflect very large input using ap_rwrite() or ap_rputs(), such as with mod_luas r:puts() function. Modules compiled and distributed separately from Apache HTTP Server that use the 'ap_rputs' function and may pass it a very large (INT_MAX or larger) string must be compiled against current headers to resolve the issue.

Action-Not Available
Vendor-NetApp, Inc.The Apache Software FoundationFedora Project
Product-http_serverclustered_data_ontapfedoraApache HTTP Server
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CWE ID-CWE-190
Integer Overflow or Wraparound
CVE-2025-23195
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-0.73% / 50.53%
||
7 Day CHG+0.01%
Published-21 Jan, 2025 | 21:22
Updated-09 Jun, 2025 | 19:36
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Ambari: XML External Entity (XXE) Vulnerability in Ambari/Oozie

An XML External Entity (XXE) vulnerability exists in the Ambari/Oozie project, allowing an attacker to inject malicious XML entities. This vulnerability occurs due to insecure parsing of XML input using the `DocumentBuilderFactory` class without disabling external entity resolution. An attacker can exploit this vulnerability to read arbitrary files on the server or perform server-side request forgery (SSRF) attacks. The issue has been fixed in both Ambari 2.7.9 and the trunk branch.

Action-Not Available
Vendor-The Apache Software Foundation
Product-ambariApache Ambari
CWE ID-CWE-611
Improper Restriction of XML External Entity Reference
CVE-2022-26885
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.23% / 65.91%
||
7 Day CHG~0.00%
Published-24 Nov, 2022 | 00:00
Updated-25 Apr, 2025 | 19:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache DolphinScheduler config file read by task risk

When using tasks to read config files, there is a risk of database password disclosure. We recommend you upgrade to version 2.0.6 or higher.

Action-Not Available
Vendor-The Apache Software Foundation
Product-dolphinschedulerApache DolphinScheduler
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2018-1299
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-3.00% / 85.96%
||
7 Day CHG~0.00%
Published-06 Feb, 2018 | 19:00
Updated-16 Sep, 2024 | 21:07
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In Apache Allura before 1.8.0, unauthenticated attackers may retrieve arbitrary files through the Allura web application. Some webservers used with Allura, such as Nginx, Apache/mod_wsgi or paster may prevent the attack from succeeding. Others, such as gunicorn do not prevent it and leave Allura vulnerable.

Action-Not Available
Vendor-The Apache Software Foundation
Product-alluraApache Allura
CWE ID-CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2018-1323
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-43.05% / 98.59%
||
7 Day CHG~0.00%
Published-12 Mar, 2018 | 16:00
Updated-17 Sep, 2024 | 02:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The IIS/ISAPI specific code in the Apache Tomcat JK ISAPI Connector 1.2.0 to 1.2.42 that normalised the requested path before matching it to the URI-worker map did not handle some edge cases correctly. If only a sub-set of the URLs supported by Tomcat were exposed via IIS, then it was possible for a specially constructed request to expose application functionality through the reverse proxy that was not intended for clients accessing Tomcat via the reverse proxy.

Action-Not Available
Vendor-The Apache Software Foundation
Product-tomcat_jk_connectorApache Tomcat Connectors
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CWE ID-CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2018-1337
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-9.8||CRITICAL
EPSS-5.17% / 91.58%
||
7 Day CHG~0.00%
Published-10 Jul, 2018 | 13:00
Updated-17 Sep, 2024 | 01:12
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In Apache Directory LDAP API before 1.0.2, a bug in the way the SSL Filter was setup made it possible for another thread to use the connection before the TLS layer has been established, if the connection has already been used and put back in a pool of connections, leading to leaking any information contained in this request (including the credentials when sending a BIND request).

Action-Not Available
Vendor-The Apache Software Foundation
Product-directory_ldap_apiApache Directory
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2023-34981
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.12% / 62.71%
||
7 Day CHG~0.00%
Published-21 Jun, 2023 | 10:26
Updated-13 Feb, 2025 | 16:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Tomcat: AJP response header mix-up

A regression in the fix for bug 66512 in Apache Tomcat 11.0.0-M5, 10.1.8, 9.0.74 and 8.5.88 meant that, if a response did not include any HTTP headers no AJP SEND_HEADERS messare woudl be sent for the response which in turn meant that at least one AJP proxy (mod_proxy_ajp) would use the response headers from the previous request leading to an information leak.

Action-Not Available
Vendor-The Apache Software Foundation
Product-tomcatApache Tomcattomcat
CWE ID-CWE-732
Incorrect Permission Assignment for Critical Resource
CVE-2023-34434
Matching Score-8
Assigner-Apache Software Foundation
ShareView Details
Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.70% / 74.83%
||
7 Day CHG+0.38%
Published-25 Jul, 2023 | 07:09
Updated-13 Feb, 2025 | 17:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache InLong: JDBC URL bypassing by allowLoadLocalInfileInPath param

Deserialization of Untrusted Data Vulnerability in Apache Software Foundation Apache InLong.This issue affects Apache InLong: from 1.4.0 through 1.7.0.  The attacker could bypass the current logic and achieve arbitrary file reading. To solve it, users are advised to upgrade to Apache InLong's 1.8.0 or cherry-pick https://github.com/apache/inlong/pull/8130 .

Action-Not Available
Vendor-The Apache Software Foundation
Product-inlongApache InLonginlong
CWE ID-CWE-502
Deserialization of Untrusted Data
CVE-2018-11759
Matching Score-8
Assigner-Apache Software Foundation
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Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-90.65% / 99.79%
||
7 Day CHG~0.00%
Published-31 Oct, 2018 | 20:00
Updated-05 Aug, 2024 | 08:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

The Apache Web Server (httpd) specific code that normalised the requested path before matching it to the URI-worker map in Apache Tomcat JK (mod_jk) Connector 1.2.0 to 1.2.44 did not handle some edge cases correctly. If only a sub-set of the URLs supported by Tomcat were exposed via httpd, then it was possible for a specially constructed request to expose application functionality through the reverse proxy that was not intended for clients accessing the application via the reverse proxy. It was also possible in some configurations for a specially constructed request to bypass the access controls configured in httpd. While there is some overlap between this issue and CVE-2018-1323, they are not identical.

Action-Not Available
Vendor-Red Hat, Inc.The Apache Software FoundationDebian GNU/Linux
Product-tomcat_jk_connectordebian_linuxjboss_core_servicesApache Tomcat Connectors
CWE ID-CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE-2018-11783
Matching Score-8
Assigner-Apache Software Foundation
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Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.87% / 77.14%
||
7 Day CHG~0.00%
Published-07 Mar, 2019 | 18:00
Updated-16 Sep, 2024 | 22:15
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

sslheaders plugin extracts information from the client certificate and sets headers in the request based on the configuration of the plugin. The plugin doesn't strip the headers from the request in some scenarios. This problem was discovered in versions 6.0.0 to 6.0.3, 7.0.0 to 7.1.5, and 8.0.0 to 8.0.1.

Action-Not Available
Vendor-The Apache Software Foundation
Product-traffic_serverApache Traffic Server
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2023-33933
Matching Score-8
Assigner-Apache Software Foundation
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Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-1.50% / 71.50%
||
7 Day CHG~0.00%
Published-14 Jun, 2023 | 07:44
Updated-13 Feb, 2025 | 17:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Traffic Server: s3_auth plugin problem with hash calculation

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache Software Foundation Apache Traffic Server.This issue affects Apache Traffic Server: from 8.0.0 through 9.2.0. 8.x users should upgrade to 8.1.7 or later versions 9.x users should upgrade to 9.2.1 or later versions

Action-Not Available
Vendor-The Apache Software Foundation
Product-traffic_serverApache Traffic Servertraffic_server
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
CVE-2018-11804
Matching Score-8
Assigner-Apache Software Foundation
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Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-5.70% / 92.19%
||
7 Day CHG~0.00%
Published-24 Oct, 2018 | 00:00
Updated-05 Aug, 2024 | 08:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Spark's Apache Maven-based build includes a convenience script, 'build/mvn', that downloads and runs a zinc server to speed up compilation. It has been included in release branches since 1.3.x, up to and including master. This server will accept connections from external hosts by default. A specially-crafted request to the zinc server could cause it to reveal information in files readable to the developer account running the build. Note that this issue does not affect end users of Spark, only developers building Spark from source code.

Action-Not Available
Vendor-The Apache Software Foundation
Product-sparkApache Spark
CVE-2018-11765
Matching Score-8
Assigner-Apache Software Foundation
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Matching Score-8
Assigner-Apache Software Foundation
CVSS Score-7.5||HIGH
EPSS-5.21% / 91.62%
||
7 Day CHG~0.00%
Published-30 Sep, 2020 | 17:02
Updated-05 Aug, 2024 | 08:17
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

In Apache Hadoop versions 3.0.0-alpha2 to 3.0.0, 2.9.0 to 2.9.2, 2.8.0 to 2.8.5, any users can access some servlets without authentication when Kerberos authentication is enabled and SPNEGO through HTTP is not enabled.

Action-Not Available
Vendor-n/aThe Apache Software Foundation
Product-hadoopApache Hadoop
CWE ID-CWE-287
Improper Authentication
CVE-2018-10583
Matching Score-8
Assigner-MITRE Corporation
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Matching Score-8
Assigner-MITRE Corporation
CVSS Score-7.5||HIGH
EPSS-78.97% / 99.55%
||
7 Day CHG+0.29%
Published-01 May, 2018 | 16:00
Updated-05 Aug, 2024 | 07:39
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

An information disclosure vulnerability occurs when LibreOffice 6.0.3 and Apache OpenOffice Writer 4.1.5 automatically process and initiate an SMB connection embedded in a malicious file, as demonstrated by xlink:href=file://192.168.0.2/test.jpg within an office:document-content element in a .odt XML document.

Action-Not Available
Vendor-libreofficen/aCanonical Ltd.The Apache Software FoundationDebian GNU/LinuxRed Hat, Inc.
Product-enterprise_linux_serverubuntu_linuxdebian_linuxenterprise_linux_workstationlibreofficeenterprise_linux_desktopopenofficen/a
CWE ID-CWE-200
Exposure of Sensitive Information to an Unauthorized Actor
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