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ALSA-2025:23052 Not scored

Important: tomcat9 security update

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process. Tomcat is developed in an open and participatory environment and released under the Apache Software License version 2.0. Tomcat is intended to be a collaboration of the best-of-breed developers from around the world. Security Fix(es): * tomcat: Apache Tomcat: Bypass of rules in Rewrite Valve (CVE-2025-31651) * tomcat: org.apache.tomcat/tomcat-catalina: Apache Tomcat: Directory traversal via rewrite with possible RCE (CVE-2025-55752) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Exploit probability Not scored
Published December 10, 2025
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

AlmaLinux:10 tomcat9
AlmaLinux:10 tomcat9-admin-webapps
AlmaLinux:10 tomcat9-docs-webapp
AlmaLinux:10 tomcat9-el-3.0-api
AlmaLinux:10 tomcat9-jsp-2.3-api
AlmaLinux:10 tomcat9-lib
AlmaLinux:10 tomcat9-servlet-4.0-api
AlmaLinux:10 tomcat9-webapps

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities ALSA-2025:23052

Tomcat is the servlet container that is used in the official Reference Implementation for the Java Servlet and JavaServer Pages technologies. The Java Servlet and JavaServer Pages specifications are developed by Sun under the Java Community Process. Tomcat is developed in an open and participatory environment and released under the Apache Software License version 2.0. Tomcat is intended to be a collaboration of the best-of-breed developers from around the world. Security Fix(es): * tomcat: Apache Tomcat: Bypass of rules in Rewrite Valve (CVE-2025-31651) * tomcat: org.apache.tomcat/tomcat-catalina: Apache Tomcat: Directory traversal via rewrite with possible RCE (CVE-2025-55752) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

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05 / REFERENCES

Further evidence