RHSA-2026:18916HighCVSS 7.4

Red Hat Security Advisory: tomcat security update

Published
May 19, 2026
Last Modified
October 1, 2026

🔗 CVE IDs covered (7)

CVE-2024-52316 →CVE-2024-54677 →CVE-2025-46701 →CVE-2025-55668 →CVE-2025-55754 →CVE-2025-61795 →CVE-2026-55957 →

📋 Description

CVE-2024-52316 — tomcat: Apache Tomcat: Authentication bypass when using Jakarta Authentication API CVE-2024-54677 — tomcat: Apache Tomcat: DoS in examples web application CVE-2025-46701 — tomcat: Apache Tomcat: Security constraint bypass for CGI scripts CVE-2025-55668 — org.apache.tomcat/tomcat-catalina: tomcat: Apache Tomcat: session fixation via rewrite valve CVE-2025-55754 — org.apache.tomcat/tomcat-juli: tomcat: Apache Tomcat: console manipulation CVE-2025-61795 — tomcat: org.apache.tomcat/tomcat-catalina: Apache Tomcat: Denial of service CVE-2026-55957 — tomcat: Apache Tomcat: Authentication bypass via missing critical step in JNDIRealm GSSAPI configuration

🎯 Affected products10

  • Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-1:9.0.110-2.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-1:9.0.110-2.el9_8.src as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-admin-webapps-1:9.0.110-2.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-docs-webapp-1:9.0.110-2.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-el-3.0-api-1:9.0.110-2.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-jsp-2.3-api-1:9.0.110-2.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-lib-1:9.0.110-2.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-servlet-4.0-api-1:9.0.110-2.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)
  • tomcat-webapps-1:9.0.110-2.el9_8.noarch as a component of Red Hat Enterprise Linux AppStream (v. 9)

✅ Remediation

For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 Workaround: Mitigation is either unavailable or does not meet Red Hat Product Security standards for usability, deployment, applicability, or stability. Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability. Workaround: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

🔗 References (8)