CVE-2026-53404

Public on 2026-06-29
Modified on 2026-07-01
Description
Always-Incorrect Control Flow Implementation vulnerability in Apache Tomcat's rewrite valve meant that if the first condition in an OR chain matched, subsequent non-OR conditions were skipped.

This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.22, from 10.1.0-M1 through 10.1.55, from 9.0.0.M1 through 9.0.118, from 8.5.0 through 8.5.100. Other versions that have reached end of support may also be affected.

Users are recommended to upgrade to version 11.0.23, 10.1.56 or 9.0.119, which fix the issue.
Severity
Medium severity
Medium
See what this means
CVSS v3 Base Score
6.5
See breakdown

Affected Packages

Platform Package Release Date Advisory Status
Amazon Linux 2 - Tomcat9 Extra tomcat Pending Fix
Amazon Linux 2 - Core tomcat Not Affected
Amazon Linux 2 - Core tomcat-native Not Affected
Amazon Linux 2023 tomcat-native Not Affected
Amazon Linux 2023 tomcat10 Pending Fix
Amazon Linux 2023 tomcat9 Pending Fix
Amazon Linux 2 - Core tomcatjss Not Affected

CVSS Scores

Score Type Score Vector
Amazon Linux CVSSv3 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N