{"id":"UBUNTU-CVE-2023-46589","details":"Improper Input Validation vulnerability in Apache Tomcat.Tomcat from 11.0.0-M1 through 11.0.0-M10, from 10.1.0-M1 through 10.1.15, from 9.0.0-M1 through 9.0.82 and from 8.5.0 through 8.5.95 did not correctly parse HTTP trailer headers. A trailer header that exceeded the header size limit could cause Tomcat to treat a single request as multiple requests leading to the possibility of request smuggling when behind a reverse proxy. Older, EOL versions may also be affected. Users are recommended to upgrade to version 11.0.0-M11 onwards, 10.1.16 onwards, 9.0.83 onwards or 8.5.96 onwards, which fix the issue.","modified":"2026-06-04T12:45:23.837066760Z","published":"2023-11-28T16:15:00Z","related":["USN-7032-1"],"upstream":["CVE-2023-46589"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2023-46589"},{"type":"REPORT","url":"https://www.openwall.com/lists/oss-security/2023/11/28/2"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/b5776d769bffeade865061bc8ecbeb2b56167b08"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/7a2d8818fcea0b51747a67af9510ce7977245ebd"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/aa92971e879a519384c517febc39fd04c48d4642"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/abdf1d8e8a8f12d1956f2828bf22b9846a6dcdef"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/0a11905b67fdff58f4efa77fb099ca9967a709b3"},{"type":"REPORT","url":"https://github.com/apache/tomcat/commit/bcacd783e2593ae9b2c07a561bd5f95a145a7761"},{"type":"REPORT","url":"https://lists.apache.org/thread/0rqq6ktozqc42ro8hhxdmmdjm1k1tpxr"},{"type":"REPORT","url":"http://www.openwall.com/lists/oss-security/2023/11/28/2"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2023-46589"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-7032-1"}],"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_version":"6.0.39-1ubuntu0.1+esm3","binary_name":"libservlet2.5-java"},{"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_version":"6.0.39-1ubuntu0.1+esm3","binary_name":"tomcat6-common"},{"binary_version":"6.0.39-1ubuntu0.1+esm3","binary_name":"tomcat6-docs"},{"binary_version":"6.0.39-1ubuntu0.1+esm3","binary_name":"tomcat6-examples"},{"binary_name":"tomcat6-extras","binary_version":"6.0.39-1ubuntu0.1+esm3"},{"binary_name":"tomcat6-user","binary_version":"6.0.39-1ubuntu0.1+esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2023/UBUNTU-CVE-2023-46589.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_version":"7.0.52-1ubuntu0.16+esm2","binary_name":"libservlet3.0-java"},{"binary_name":"libtomcat7-java","binary_version":"7.0.52-1ubuntu0.16+esm2"},{"binary_name":"tomcat7","binary_version":"7.0.52-1ubuntu0.16+esm2"},{"binary_version":"7.0.52-1ubuntu0.16+esm2","binary_name":"tomcat7-admin"},{"binary_version":"7.0.52-1ubuntu0.16+esm2","binary_name":"tomcat7-common"},{"binary_name":"tomcat7-docs","binary_version":"7.0.52-1ubuntu0.16+esm2"},{"binary_version":"7.0.52-1ubuntu0.16+esm2","binary_name":"tomcat7-examples"},{"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/2023/UBUNTU-CVE-2023-46589.json"}},{"package":{"name":"tomcat7","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/tomcat7?arch=source&distro=esm-apps-legacy%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["7.0.64-1","7.0.68-1","7.0.68-1ubuntu0.1","7.0.68-1ubuntu0.3","7.0.68-1ubuntu0.4","7.0.68-1ubuntu0.4+esm1","7.0.68-1ubuntu0.4+esm2","7.0.68-1ubuntu0.4+esm3","7.0.68-1ubuntu0.4+esm4"],"ecosystem_specific":{"binaries":[{"binary_name":"libservlet3.0-java","binary_version":"7.0.68-1ubuntu0.4+esm4"},{"binary_name":"libtomcat7-java","binary_version":"7.0.68-1ubuntu0.4+esm4"},{"binary_name":"tomcat7","binary_version":"7.0.68-1ubuntu0.4+esm4"},{"binary_name":"tomcat7-admin","binary_version":"7.0.68-1ubuntu0.4+esm4"},{"binary_name":"tomcat7-common","binary_version":"7.0.68-1ubuntu0.4+esm4"},{"binary_version":"7.0.68-1ubuntu0.4+esm4","binary_name":"tomcat7-docs"},{"binary_version":"7.0.68-1ubuntu0.4+esm4","binary_name":"tomcat7-examples"},{"binary_name":"tomcat7-user","binary_version":"7.0.68-1ubuntu0.4+esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/o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