{"id":"GHSA-f268-65qc-98vg","summary":"Exposure of Sensitive Information to an Unauthorized Actor in Apache Tomcat","details":"If an HTTP/2 client connecting to Apache Tomcat 10.0.0-M1 to 10.0.0-M7, 9.0.0.M1 to 9.0.37 or 8.5.0 to 8.5.57 exceeded the agreed maximum number of concurrent streams for a connection (in violation of the HTTP/2 protocol), it was possible that a subsequent request made on that connection could contain HTTP headers - including HTTP/2 pseudo headers - from a previous request rather than the intended headers. This could lead to users seeing responses for unexpected resources.","aliases":["BIT-tomcat-2020-13943","CVE-2020-13943"],"modified":"2024-02-16T08:04:48.542136Z","published":"2022-02-09T23:03:53Z","database_specific":{"cwe_ids":["CWE-200"],"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2021-04-12T18:12:07Z","nvd_published_at":"2020-10-12T14:15:00Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-13943"},{"type":"WEB","url":"https://github.com/apache/tomcat/commit/1bbc650cbc3f08d85a1ec6d803c47ae53a84f3bb"},{"type":"WEB","url":"https://github.com/apache/tomcat/commit/55911430df13f8c9998fbdee1f9716994d2db59b"},{"type":"WEB","url":"https://github.com/apache/tomcat/commit/9d7def063b47407a09a2f9202beed99f4dcb292a"},{"type":"WEB","url":"https://lists.apache.org/thread.html/r4a390027eb27e4550142fac6c8317cc684b157ae314d31514747f307%40%3Cannounce.tomcat.apache.org%3E"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2020/10/msg00019.html"},{"type":"WEB","url":"https://security.netapp.com/advisory/ntap-20201016-0007"},{"type":"WEB","url":"https://www.debian.org/security/2021/dsa-4835"},{"type":"WEB","url":"https://www.oracle.com/security-alerts/cpuApr2021.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00002.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00021.html"}],"affected":[{"package":{"name":"org.apache.tomcat:tomcat-coyote","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"10.0.0-M1"},{"fixed":"10.0.0-M8"}]}],"versions":["10.0.0-M1","10.0.0-M3","10.0.0-M4","10.0.0-M5","10.0.0-M6","10.0.0-M7"],"database_specific":{"last_known_affected_version_range":"\u003c= 10.0.0-M7","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-f268-65qc-98vg/GHSA-f268-65qc-98vg.json"}},{"package":{"name":"org.apache.tomcat:tomcat-coyote","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"9.0.0-M1"},{"fixed":"9.0.38"}]}],"versions":["9.0.0.M1","9.0.0.M10","9.0.0.M11","9.0.0.M13","9.0.0.M15","9.0.0.M17","9.0.0.M18","9.0.0.M19","9.0.0.M20","9.0.0.M21","9.0.0.M22","9.0.0.M25","9.0.0.M26","9.0.0.M27","9.0.0.M3","9.0.0.M4","9.0.0.M6","9.0.0.M8","9.0.0.M9","9.0.1","9.0.10","9.0.11","9.0.12","9.0.13","9.0.14","9.0.16","9.0.17","9.0.19","9.0.2","9.0.20","9.0.21","9.0.22","9.0.24","9.0.26","9.0.27","9.0.29","9.0.30","9.0.31","9.0.33","9.0.34","9.0.35","9.0.36","9.0.37","9.0.4","9.0.5","9.0.6","9.0.7","9.0.8"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-f268-65qc-98vg/GHSA-f268-65qc-98vg.json","last_known_affected_version_range":"\u003c= 9.0.37"}},{"package":{"name":"org.apache.tomcat:tomcat-coyote","ecosystem":"Maven","purl":"pkg:maven/org.apache.tomcat/tomcat-coyote"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"8.5.0"},{"fixed":"8.5.58"}]}],"versions":["8.5.0","8.5.11","8.5.12","8.5.13","8.5.14","8.5.15","8.5.16","8.5.19","8.5.2","8.5.20","8.5.21","8.5.23","8.5.24","8.5.27","8.5.28","8.5.29","8.5.3","8.5.30","8.5.31","8.5.32","8.5.33","8.5.34","8.5.35","8.5.37","8.5.38","8.5.39","8.5.4","8.5.40","8.5.41","8.5.42","8.5.43","8.5.45","8.5.46","8.5.47","8.5.49","8.5.5","8.5.50","8.5.51","8.5.53","8.5.54","8.5.55","8.5.56","8.5.57","8.5.6","8.5.8","8.5.9"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/02/GHSA-f268-65qc-98vg/GHSA-f268-65qc-98vg.json","last_known_affected_version_range":"\u003c= 8.5.57"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}