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Vulnerability Details :

CVE-2023-46589

Summary
Assigner-apache
Assigner Org ID-f0158376-9dc2-43b6-827c-5f631a4d8d09
Published At-28 Nov, 2023 | 15:31
Updated At-21 Aug, 2025 | 13:49
Rejected At-
Credits

Apache Tomcat: HTTP request smuggling via malformed trailer headers

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

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:28 Nov, 2023 | 15:31
Updated At:21 Aug, 2025 | 13:49
Rejected At:
▼CVE Numbering Authority (CNA)
Apache Tomcat: HTTP request smuggling via malformed trailer headers

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

Affected Products
Vendor
The Apache Software FoundationApache Software Foundation
Product
Apache Tomcat
Default Status
unaffected
Versions
Affected
  • From 11.0.0-M1 through 11.0.0-M10 (semver)
  • From 10.1.0-M1 through 10.1.15 (semver)
  • From 9.0.0-M1 through 9.0.82 (semver)
  • From 8.5.0 through 8.5.95 (semver)

unknown

  • From 3 before 8.5.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-444CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Type: CWE
CWE ID: CWE-444
Description: CWE-444 Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Textual description of severity
text:
important
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Norihito Aimoto (OSSTech Corporation)
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
vendor-advisory
https://www.openwall.com/lists/oss-security/2023/11/28/2
N/A
Hyperlink: https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
Resource:
vendor-advisory
Hyperlink: https://www.openwall.com/lists/oss-security/2023/11/28/2
Resource: N/A
▼Authorized Data Publishers (ADP)
1. CISA ADP Vulnrichment
Affected Products
Vendor
The Apache Software Foundationapache
Product
tomcat
CPEs
  • cpe:2.3:a:apache:tomcat:-:*:*:*:*:*:*:*
Default Status
unknown
Versions
Affected
  • From 11.0.0-m1 through 11.0.0-m10 (custom)
  • From 10.1.0-M1 through 10.1.15 (custom)
  • From 9.0.0-M1 through 9.0.82 (custom)
  • From 8.5.0 through 8.5.95 (custom)
Metrics
VersionBase scoreBase severityVector
3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
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:N/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
2. 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://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
vendor-advisory
x_transferred
https://www.openwall.com/lists/oss-security/2023/11/28/2
x_transferred
https://security.netapp.com/advisory/ntap-20231214-0009/
x_transferred
https://lists.debian.org/debian-lts-announce/2024/01/msg00001.html
x_transferred
Hyperlink: https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
Resource:
vendor-advisory
x_transferred
Hyperlink: https://www.openwall.com/lists/oss-security/2023/11/28/2
Resource:
x_transferred
Hyperlink: https://security.netapp.com/advisory/ntap-20231214-0009/
Resource:
x_transferred
Hyperlink: https://lists.debian.org/debian-lts-announce/2024/01/msg00001.html
Resource:
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security@apache.org
Published At:28 Nov, 2023 | 16:15
Updated At:07 Aug, 2025 | 11:15

Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.

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:N/I:H/A:N
Secondary3.17.5HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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:N/I:H/A:N
Type: Secondary
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:N/I:H/A:N
CPE Matches
The Apache Software Foundation
apache
>>tomcat>>Versions from 8.5.0(inclusive) to 8.5.96(exclusive)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>Versions from 9.0.0(inclusive) to 9.0.83(exclusive)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>Versions from 10.1.0(inclusive) to 10.1.16(exclusive)
cpe:2.3:a:apache:tomcat:*:*:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone1:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone10:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone2:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone3:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone4:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone5:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone6:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone7:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone8:*:*:*:*:*:*
The Apache Software Foundation
apache
>>tomcat>>11.0.0
cpe:2.3:a:apache:tomcat:11.0.0:milestone9:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-444Secondarysecurity@apache.org
CWE-444Primarynvd@nist.gov
CWE ID: CWE-444
Type: Secondary
Source: security@apache.org
CWE ID: CWE-444
Type: Primary
Source: nvd@nist.gov
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxrsecurity@apache.org
Mailing List
Vendor Advisory
https://www.openwall.com/lists/oss-security/2023/11/28/2security@apache.org
Mailing List
Third Party Advisory
https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxraf854a3a-2127-422b-91ae-364da2661108
Mailing List
Vendor Advisory
https://lists.debian.org/debian-lts-announce/2024/01/msg00001.htmlaf854a3a-2127-422b-91ae-364da2661108
N/A
https://security.netapp.com/advisory/ntap-20231214-0009/af854a3a-2127-422b-91ae-364da2661108
N/A
https://www.openwall.com/lists/oss-security/2023/11/28/2af854a3a-2127-422b-91ae-364da2661108
Mailing List
Third Party Advisory
Hyperlink: https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
Source: security@apache.org
Resource:
Mailing List
Vendor Advisory
Hyperlink: https://www.openwall.com/lists/oss-security/2023/11/28/2
Source: security@apache.org
Resource:
Mailing List
Third Party Advisory
Hyperlink: https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Mailing List
Vendor Advisory
Hyperlink: https://lists.debian.org/debian-lts-announce/2024/01/msg00001.html
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: https://security.netapp.com/advisory/ntap-20231214-0009/
Source: af854a3a-2127-422b-91ae-364da2661108
Resource: N/A
Hyperlink: https://www.openwall.com/lists/oss-security/2023/11/28/2
Source: af854a3a-2127-422b-91ae-364da2661108
Resource:
Mailing List
Third Party Advisory

Change History

0
Information is not available yet

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