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ALSA-2026:68651 — Moderate: tomcat9 security update

Affected: 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

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):

* Apache Tomcat: Apache Tomcat: Improper Input Validation vulnerability due to incomplete fix (CVE-2026-32990) * tomcat-coyote: Apache Tomcat: Authentication bypass via digest authentication (CVE-2026-43512) * tomcat-coyote: Apache Tomcat: HTTP/2 request headers not validated (CVE-2026-41293) * tomcat-coyote: Apache Tomcat: Information disclosure due to HTTP Authentication Header exposure during WebSocket authentication. (CVE-2026-42498) * tomcat-coyote: tomcat: Improper Authorization allows security bypass (CVE-2026-43515) * tomcat-catalina: Apache Tomcat: Improper Handling of Case Sensitivity in LockOutRealm (CVE-2026-43513) * tomcat: Apache Tomcat: Security constraint bypass via improper URL encoding in rewrite valve (CVE-2026-59083) * tomcat: Apache Tomcat: Insufficient documentation for EncryptInterceptor may lead to insecure configurations (CVE-2026-59084)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other relate…

bdu:2026-11861

BIT-tomcat-2026-32990 — Apache Tomcat: Fix for CVE-2025-66614 is incomplete

Affected: Bitnami: tomcat

Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614.

This issue affects Apache Tomcat: from 11.0.15 through 11.0.19, from 10.1.50 through 10.1.52, from 9.0.113 through 9.0.115.

Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

certfr-2026-avi-0418 — De multiples vulnérabilités ont été découvertes dans Apache Tomcat. Elles permettent à un attaquant de provoquer une at…

certfr-2026-avi-0418

CLEANSTART-2026-AM77386 — Security fix for CVE-2026-32990 applied in: tomcat9 9.0.115-r0

Affected: CleanStart: tomcat9

Security vulnerability affects the tomcat9 package. This issue is resolved in later releases. See references for vulnerability details.

EUVD-2026-290489

fkie_cve-2026-32990

Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614.

This issue affects Apache Tomcat: from 11.0.15 through 11.0.19, from 10.1.50 through 10.1.52, from 9.0.113 through 9.0.115.

Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

GHSA-8mc5-53m5-3qj2 — Apache Tomcat has an Improper Input Validation vulnerability

Affected: Maven: org.apache.tomcat:tomcat-coyote, Maven: org.apache.tomcat:tomcat, Maven: org.apache.tomcat.embed:tomcat-embed-core

Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614.

This issue affects Apache Tomcat: from 11.0.15 through 11.0.19, from 10.1.50 through 10.1.52, from 9.0.113 through 9.0.115.

Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

OESA-2026-1970 — tomcat security update

Affected: openEuler:24.03-LTS-SP3: tomcat, openEuler:20.03-LTS-SP4: tomcat, openEuler:22.03-LTS-SP4: tomcat, openEuler:24.03-LTS: tomcat, openEuler:24.03-LTS-SP1: tomcat, openEuler:24.03-LTS-SP2: tomcat

Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling') vulnerability in Apache Tomcat via invalid chunk extension.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M1 through 9.0.115, from 8.5.0 through 8.5.100, from 7.0.0 through 7.0.109. Other, unsupported versions may also be affected.

Users are recommended to upgrade to version 11.0.20, 10.1.52 or 9.0.116, which fix the issue.(CVE-2026-24880)

Occasional URL redirection to untrusted Site ('Open Redirect') vulnerability in Apache Tomcat via the LoadBalancerDrainingValve.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through 9.0.115, from 8.5.30 through 8.5.100. Other, unsupported versions may also be affected

Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.(CVE-2026-25854)

Configured cipher preference order not preserved vulnerability in Apache Tomcat.

This issue affects Apache Tomcat: from 11.0.16 through 11.0.18, from 10.1.51 through 10.1.52, from 9.0.114 through 9.0.115.

Users are recommended to upgrade to version 11.0.20, 10.1.53…

openSUSE-SU-2026:10547-1 — tomcat-9.0.117-1.1 on GA media

tomcat-9.0.117-1.1 on GA media

RHSA-2026:12194 — Red Hat Security Advisory: Red Hat JBoss Web Server 6.2.2 release and security update

tomcat: Client certificate verification bypass due to virtual host mapping tomcat: security constraint bypass with HTTP/0.9 Apache Tomcat: Apache Tomcat: Improper Input Validation vulnerability due to incomplete fix

RLSA-2026:36790 — Important: tomcat9 security, bug fix, and enhancement update

Affected: Rocky Linux:10: tomcat9

Security Fix(es):

* Apache Tomcat: Apache Tomcat: Information disclosure via Padding Oracle vulnerability in EncryptInterceptor (CVE-2026-29146)

* Apache Tomcat: Apache Tomcat: Missing Encryption of Sensitive Data due to EncryptInterceptor bypass (CVE-2026-34486)

Bug Fix(es) and Enhancement(s):

* Remove tomcat clustering JAR from RPM builds (JIRA:Rocky Linux-185571)

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.

SUSE-SU-2026:1572-1 — Security update for tomcat

Security update for tomcat

UBUNTU-CVE-2026-32990

Affected: Ubuntu:26.04:LTS: tomcat9, Ubuntu:26.04:LTS: tomcat11

Improper Input Validation vulnerability in Apache Tomcat due to an incomplete fix of CVE-2025-66614. This issue affects Apache Tomcat: from 11.0.15 through 11.0.19, from 10.1.50 through 10.1.52, from 9.0.113 through 9.0.115. Users are recommended to upgrade to version 11.0.20, 10.1.53 or 9.0.116, which fix the issue.

WID-SEC-W-2026-1038 — Apache Tomcat und Tomcat Native: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Apache Tomcat ausnutzen, um Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren, vertrauliche Informationen offenzulegen, Open-Redirect-Angriffe durchzuführen und andere, nicht näher spezifizierte Angriffe auszuführen.