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Vulnerability Details :

CVE-2026-40453

Summary
Assigner-apache
Assigner Org ID-f0158376-9dc2-43b6-827c-5f631a4d8d09
Published At-27 Apr, 2026 | 08:23
Updated At-27 Apr, 2026 | 08:23
Rejected At-
Credits

Apache Camel JMS, Apache Camel CoAP, Apache Camel Google PubSub: Incomplete fix for CVE-2025-27636 in non-HTTP HeaderFilterStrategies (camel-jms, camel-sjms, camel-coap, camel-google-pubsub) allows case-variant header injection

The fix for CVE-2025-27636 added setLowerCase(true) to HttpHeaderFilterStrategy so that case-variant header names such as 'CAmelExecCommandExecutable' are filtered out alongside 'CamelExecCommandExecutable'. The same setLowerCase(true) call was not applied to five non-HTTP HeaderFilterStrategy implementations: JmsHeaderFilterStrategy and ClassicJmsHeaderFilterStrategy in camel-jms, SjmsHeaderFilterStrategy in camel-sjms, CoAPHeaderFilterStrategy in camel-coap, and GooglePubsubHeaderFilterStrategy in camel-google-pubsub. Because those strategies use case-sensitive String.startsWith('Camel'/'camel') filtering while the Camel Exchange stores headers in a case-insensitive map, an attacker with JMS (or equivalent) producer access to the broker consumed by a Camel route can inject case-variant Camel internal headers, which are then resolved by downstream components such as camel-exec and camel-file using their canonical casing. This enables remote code execution and arbitrary file write on routes that forward JMS messages to header-driven components. This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0. Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.

Vendors
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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:27 Apr, 2026 | 08:23
Updated At:27 Apr, 2026 | 08:23
Rejected At:
▼CVE Numbering Authority (CNA)
Apache Camel JMS, Apache Camel CoAP, Apache Camel Google PubSub: Incomplete fix for CVE-2025-27636 in non-HTTP HeaderFilterStrategies (camel-jms, camel-sjms, camel-coap, camel-google-pubsub) allows case-variant header injection

The fix for CVE-2025-27636 added setLowerCase(true) to HttpHeaderFilterStrategy so that case-variant header names such as 'CAmelExecCommandExecutable' are filtered out alongside 'CamelExecCommandExecutable'. The same setLowerCase(true) call was not applied to five non-HTTP HeaderFilterStrategy implementations: JmsHeaderFilterStrategy and ClassicJmsHeaderFilterStrategy in camel-jms, SjmsHeaderFilterStrategy in camel-sjms, CoAPHeaderFilterStrategy in camel-coap, and GooglePubsubHeaderFilterStrategy in camel-google-pubsub. Because those strategies use case-sensitive String.startsWith('Camel'/'camel') filtering while the Camel Exchange stores headers in a case-insensitive map, an attacker with JMS (or equivalent) producer access to the broker consumed by a Camel route can inject case-variant Camel internal headers, which are then resolved by downstream components such as camel-exec and camel-file using their canonical casing. This enables remote code execution and arbitrary file write on routes that forward JMS messages to header-driven components. This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0. Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.

Affected Products
Vendor
The Apache Software FoundationApache Software Foundation
Product
Apache Camel JMS
Collection URL
https://repo.maven.apache.org/maven2
Package Name
org.apache.camel:camel-jms
Default Status
unaffected
Versions
Affected
  • From 3.0.0 before 4.14.6 (semver)
  • From 4.15.0 before 4.18.2 (semver)
  • From 4.19.0 before 4.20.0 (semver)
Vendor
The Apache Software FoundationApache Software Foundation
Product
Apache Camel CoAP
Collection URL
https://repo.maven.apache.org/maven2
Package Name
org.apache.camel:camel-coap
Default Status
unaffected
Versions
Affected
  • From 3.0.0 before 4.14.6 (semver)
  • From 4.15.0 before 4.18.2 (semver)
  • From 4.19.0 before 4.20.0 (semver)
Vendor
The Apache Software FoundationApache Software Foundation
Product
Apache Camel Google PubSub
Collection URL
https://repo.maven.apache.org/maven2
Package Name
org.apache.camel:camel-google-pubsub
Default Status
unaffected
Versions
Affected
  • From 3.0.0 before 4.14.6 (semver)
  • From 4.15.0 before 4.18.2 (semver)
  • From 4.19.0 before 4.20.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-178CWE-178 Improper Handling of Case Sensitivity
Type: CWE
CWE ID: CWE-178
Description: CWE-178 Improper Handling of Case Sensitivity
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Textual description of severity
text:
important
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

finder
Saroj Khadka
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://camel.apache.org/security/CVE-2026-40453.html
vendor-advisory
Hyperlink: https://camel.apache.org/security/CVE-2026-40453.html
Resource:
vendor-advisory
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@apache.org
Published At:27 Apr, 2026 | 09:16
Updated At:27 Apr, 2026 | 09:16

The fix for CVE-2025-27636 added setLowerCase(true) to HttpHeaderFilterStrategy so that case-variant header names such as 'CAmelExecCommandExecutable' are filtered out alongside 'CamelExecCommandExecutable'. The same setLowerCase(true) call was not applied to five non-HTTP HeaderFilterStrategy implementations: JmsHeaderFilterStrategy and ClassicJmsHeaderFilterStrategy in camel-jms, SjmsHeaderFilterStrategy in camel-sjms, CoAPHeaderFilterStrategy in camel-coap, and GooglePubsubHeaderFilterStrategy in camel-google-pubsub. Because those strategies use case-sensitive String.startsWith('Camel'/'camel') filtering while the Camel Exchange stores headers in a case-insensitive map, an attacker with JMS (or equivalent) producer access to the broker consumed by a Camel route can inject case-variant Camel internal headers, which are then resolved by downstream components such as camel-exec and camel-file using their canonical casing. This enables remote code execution and arbitrary file write on routes that forward JMS messages to header-driven components. This issue affects Apache Camel: from 3.0.0 before 4.14.6, from 4.15.0 before 4.18.2, from 4.19.0 before 4.20.0. Users are recommended to upgrade to version 4.20.0, which fixes the issue. If users are on the 4.14.x LTS releases stream, then they are suggested to upgrade to 4.14.6. If users are on the 4.18.x releases stream, then they are suggested to upgrade to 4.18.2.

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
CPE Matches

Weaknesses
CWE IDTypeSource
CWE-178Primarysecurity@apache.org
CWE ID: CWE-178
Type: Primary
Source: security@apache.org
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://camel.apache.org/security/CVE-2026-40453.htmlsecurity@apache.org
N/A
Hyperlink: https://camel.apache.org/security/CVE-2026-40453.html
Source: security@apache.org
Resource: N/A

Change History

0
Information is not available yet

Similar CVEs

2Records found

CVE-2025-27636
Matching Score-6
Assigner-Apache Software Foundation
ShareView Details
Matching Score-6
Assigner-Apache Software Foundation
CVSS Score-5.6||MEDIUM
EPSS-35.52% / 97.08%
||
7 Day CHG-22.51%
Published-09 Mar, 2025 | 12:09
Updated-26 Feb, 2026 | 19:09
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available
Apache Camel: Camel Message Header Injection via Improper Filtering

Bypass/Injection vulnerability in Apache Camel components under particular conditions. This issue affects Apache Camel: from 4.10.0 through <= 4.10.1, from 4.8.0 through <= 4.8.4, from 3.10.0 through <= 3.22.3. Users are recommended to upgrade to version 4.10.2 for 4.10.x LTS, 4.8.5 for 4.8.x LTS and 3.22.4 for 3.x releases. This vulnerability is present in Camel's default incoming header filter, that allows an attacker to include Camel specific headers that for some Camel components can alter the behaviours such as the camel-bean component, to call another method on the bean, than was coded in the application. In the camel-jms component, then a malicious header can be used to send the message to another queue (on the same broker) than was coded in the application. This could also be seen by using the camel-exec component The attacker would need to inject custom headers, such as HTTP protocols. So if you have Camel applications that are directly connected to the internet via HTTP, then an attacker could include malicious HTTP headers in the HTTP requests that are send to the Camel application. All the known Camel HTTP component such as camel-servlet, camel-jetty, camel-undertow, camel-platform-http, and camel-netty-http would be vulnerable out of the box. In these conditions an attacker could be able to forge a Camel header name and make the bean component invoking other methods in the same bean. In terms of usage of the default header filter strategy the list of components using that is: * camel-activemq * camel-activemq6 * camel-amqp * camel-aws2-sqs * camel-azure-servicebus * camel-cxf-rest * camel-cxf-soap * camel-http * camel-jetty * camel-jms * camel-kafka * camel-knative * camel-mail * camel-nats * camel-netty-http * camel-platform-http * camel-rest * camel-sjms * camel-spring-rabbitmq * camel-stomp * camel-tahu * camel-undertow * camel-xmpp The vulnerability arises due to a bug in the default filtering mechanism that only blocks headers starting with "Camel", "camel", or "org.apache.camel.".  Mitigation: You can easily work around this in your Camel applications by removing the headers in your Camel routes. There are many ways of doing this, also globally or per route. This means you could use the removeHeaders EIP, to filter out anything like "cAmel, cAMEL" etc, or in general everything not starting with "Camel", "camel" or "org.apache.camel.".

Action-Not Available
Vendor-The Apache Software Foundation
Product-camelApache Camel
CWE ID-CWE-178
Improper Handling of Case Sensitivity
CVE-2025-46701
Matching Score-6
Assigner-Apache Software Foundation
ShareView Details
Matching Score-6
Assigner-Apache Software Foundation
CVSS Score-7.3||HIGH
EPSS-0.13% / 32.41%
||
7 Day CHG~0.00%
Published-29 May, 2025 | 19:06
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 CGI scripts

Improper Handling of Case Sensitivity vulnerability in Apache Tomcat's GCI servlet allows security constraint bypass of security constraints that apply to the pathInfo component of a URI mapped to the CGI servlet. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.6, from 10.1.0-M1 through 10.1.40, from 9.0.0.M1 through 9.0.104. The following versions were EOL at the time the CVE was created but are known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.7, 10.1.41 or 9.0.105, which fixes the issue.

Action-Not Available
Vendor-The Apache Software Foundation
Product-tomcatApache Tomcat
CWE ID-CWE-178
Improper Handling of Case Sensitivity
Details not found