Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-ff77-26x5-69cr
Advisory ID github_osv/GHSA-ff77-26x5-69cr
Aliases CVE-2025-31651
Summary Apache Tomcat Rewrite rule bypass Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in Apache Tomcat. For a subset of unlikely rewrite rule configurations, it was possible for a specially crafted request to bypass some rewrite rules. If those rewrite rules effectively enforced security constraints, those constraints could be bypassed. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.5, from 10.1.0-M1 through 10.1.39, from 9.0.0.M1 through 9.0.102. 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 9.0.104, 10.1.40 or 11.0.6, which fix the issue.
Status Published
Exploitability 0.5
Weighted Severity 2.4
Risk 1.2
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-116 Improper Encoding or Escaping of Output
CWE-150 Improper Neutralization of Escape, Meta, or Control Sequences
System Score Found at
cvssv4 2.7 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-ff77-26x5-69cr/GHSA-ff77-26x5-69cr.json
generic_textual LOW
Reference id Reference type URL
https://github.com/apache/tomcat
https://github.com/apache/tomcat/commit/066bf6b6a15a4e7e0941d4acf096841165b97098
https://github.com/apache/tomcat/commit/175dc75fc428930034a6c93fb52f830d955d8e64
https://github.com/apache/tomcat/commit/ee3ab548e92345eca0cbd1f01649eb36c6f29454
https://github.com/apache/tomcat/commit/fbecc915a10c5a3d634c5e2c6ced4ff479ce9953
https://lists.apache.org/list.html?announce@tomcat.apache.org
https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html
https://tomcat.apache.org/security-10.html
https://tomcat.apache.org/security-11.html
https://tomcat.apache.org/security-9.html
http://www.openwall.com/lists/oss-security/2025/04/28/3
CVE-2025-31651 https://nvd.nist.gov/vuln/detail/CVE-2025-31651
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/04/GHSA-ff77-26x5-69cr/GHSA-ff77-26x5-69cr.json
Attack Vector (AV) Attack Complexity (AC) Attack Requirements (AT) Privileges Required (PR) User Interaction (UI) Vulnerable System Impact Confidentiality (VC) Vulnerable System Impact Integrity (VI) Vulnerable System Impact Availability (VA) Subsequent System Impact Confidentiality (SC) Subsequent System Impact Integrity (SI) Subsequent System Impact Availability (SA)

network

adjacent

local

physical

low

high

none

present

none

low

high

none

passive

active

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

high

low

none

There are no SSVC decisions available.