{"id":"UBUNTU-CVE-2026-53404","details":"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.","modified":"2026-07-30T01:30:19.351181891Z","published":"2026-06-29T21:16:00Z","related":["USN-8551-1"],"upstream":["CVE-2026-53404"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-53404"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-53404"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/b647cb584cea8bf95e64f5d2526c59ab8fca3225"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/bbb6219fa5ac185060bef7842cee5fb90230ca00"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/fe06ae8a71997061596f54189dae1b1b5da75430"},{"type":"REPORT","url":"https://lists.apache.org/thread/rdhpghgfskrdmw9hqzjgjrtw538smpmz"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2026/06/29/21"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-8551-1"}],"affected":[{"package":{"name":"tomcat6","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/tomcat6?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["6.0.37-1","6.0.39-1","6.0.39-1ubuntu0.1","6.0.39-1ubuntu0.1+esm1","6.0.39-1ubuntu0.1+esm2","6.0.39-1ubuntu0.1+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"libservlet2.4-java","binary_version":"6.0.39-1ubuntu0.1+esm3"},{"binary_name":"libservlet2.5-java","binary_version":"6.0.39-1ubuntu0.1+esm3"},{"binary_name":"libtomcat6-java","binary_version":"6.0.39-1ubuntu0.1+esm3"},{"binary_name":"tomcat6","binary_version":"6.0.39-1ubuntu0.1+esm3"},{"binary_name":"tomcat6-admin","binary_version":"6.0.39-1ubuntu0.1+esm3"},{"binary_name":"tomcat6-common","binary_version":"6.0.39-1ubuntu0.1+esm3"},{"binary_version":"6.0.39-1ubuntu0.1+esm3","binary_name":"tomcat6-docs"},{"binary_name":"tomcat6-examples","binary_version":"6.0.39-1ubuntu0.1+esm3"},{"binary_version":"6.0.39-1ubuntu0.1+esm3","binary_name":"tomcat6-extras"},{"binary_version":"6.0.39-1ubuntu0.1+esm3","binary_name":"tomcat6-user"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53404.json"}},{"package":{"name":"tomcat7","ecosystem":"Ubuntu:Pro:14.04:LTS","purl":"pkg:deb/ubuntu/tomcat7?arch=source&distro=esm-infra-legacy%2Ftrusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.0.42-1","7.0.47-1","7.0.50-1","7.0.52-1","7.0.52-1ubuntu0.1","7.0.52-1ubuntu0.3","7.0.52-1ubuntu0.6","7.0.52-1ubuntu0.7","7.0.52-1ubuntu0.8","7.0.52-1ubuntu0.9","7.0.52-1ubuntu0.10","7.0.52-1ubuntu0.11","7.0.52-1ubuntu0.13","7.0.52-1ubuntu0.14","7.0.52-1ubuntu0.15","7.0.52-1ubuntu0.16","7.0.52-1ubuntu0.16+esm1","7.0.52-1ubuntu0.16+esm2"],"ecosystem_specific":{"binaries":[{"binary_name":"libservlet3.0-java","binary_version":"7.0.52-1ubuntu0.16+esm2"},{"binary_version":"7.0.52-1ubuntu0.16+esm2","binary_name":"libtomcat7-java"},{"binary_name":"tomcat7","binary_version":"7.0.52-1ubuntu0.16+esm2"},{"binary_version":"7.0.52-1ubuntu0.16+esm2","binary_name":"tomcat7-admin"},{"binary_name":"tomcat7-common","binary_version":"7.0.52-1ubuntu0.16+esm2"},{"binary_version":"7.0.52-1ubuntu0.16+esm2","binary_name":"tomcat7-docs"},{"binary_name":"tomcat7-examples","binary_version":"7.0.52-1ubuntu0.16+esm2"},{"binary_name":"tomcat7-user","binary_version":"7.0.52-1ubuntu0.16+esm2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-53404.json"}},{"package":{"name":"tomcat8","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat8?arch=source&distro=esm-infra-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"8.0.32-1ubuntu1.13+esm2"}]}],"versions":["8.0.26-1","8.0.28-1","8.0.30-1","8.0.32-1","8.0.32-1ubuntu1","8.0.32-1ubuntu1.1","8.0.32-1ubuntu1.2","8.0.32-1ubuntu1.3","8.0.32-1ubuntu1.4","8.0.32-1ubuntu1.5","8.0.32-1ubuntu1.6","8.0.32-1ubuntu1.7","8.0.32-1ubuntu1.8","8.0.32-1ubuntu1.9","8.0.32-1ubuntu1.10","8.0.32-1ubuntu1.11","8.0.32-1ubuntu1.13","8.0.32-1ubuntu1.13+esm1"],"ecosystem_specific":{"availability":"Available 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