GHSA-ff77-26x5-69cr
Apache Tomcat Rewrite rule bypass
Quick fix
GHSA-ff77-26x5-69cr — org.apache.tomcat:tomcat-catalina: upgrade to the fixed version with the command below.
# pom.xml: bump <version>9.0.104</version> for org.apache.tomcat:tomcat-catalinaDetails
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.
Are you affected?
Enter the version of the package you're using.
Affected packages
9.0.76Fixed in: 9.0.104# pom.xml: bump <version>9.0.104</version> for org.apache.tomcat:tomcat-catalina10.1.10Fixed in: 10.1.40# pom.xml: bump <version>10.1.40</version> for org.apache.tomcat:tomcat-catalina11.0.0-M2Fixed in: 11.0.6# pom.xml: bump <version>11.0.6</version> for org.apache.tomcat:tomcat-catalina9.0.76Fixed in: 9.0.104# pom.xml: bump <version>9.0.104</version> for org.apache.tomcat.embed:tomcat-embed-core10.1.10Fixed in: 10.1.40# pom.xml: bump <version>10.1.40</version> for org.apache.tomcat.embed:tomcat-embed-core11.0.0-M2Fixed in: 11.0.6# pom.xml: bump <version>11.0.6</version> for org.apache.tomcat.embed:tomcat-embed-core8.5.0No fixed version published yet for org.apache.tomcat:tomcat-catalina (maven). Pin to a known-safe version or switch to an alternative.
8.5.0No fixed version published yet for org.apache.tomcat.embed:tomcat-embed-core (maven). Pin to a known-safe version or switch to an alternative.
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-31651[ADVISORY]
- https://github.com/apache/tomcat/commit/066bf6b6a15a4e7e0941d4acf096841165b97098[WEB]
- https://github.com/apache/tomcat/commit/175dc75fc428930034a6c93fb52f830d955d8e64[WEB]
- https://github.com/apache/tomcat/commit/ee3ab548e92345eca0cbd1f01649eb36c6f29454[WEB]
- https://github.com/apache/tomcat/commit/fbecc915a10c5a3d634c5e2c6ced4ff479ce9953[WEB]
- https://github.com/apache/tomcat[PACKAGE]
- https://lists.apache.org/list.html?announce@tomcat.apache.org[WEB]
- https://lists.debian.org/debian-lts-announce/2025/07/msg00009.html[WEB]
- https://tomcat.apache.org/security-10.html[WEB]
- https://tomcat.apache.org/security-11.html[WEB]
- https://tomcat.apache.org/security-9.html[WEB]
- http://www.openwall.com/lists/oss-security/2025/04/28/3[WEB]