{"action":"Upgrade org.apache.tomcat:tomcat-catalina to 9.0.118 (9.x), 10.1.55 (10.x) or 11.0.22 (11.x) or later.","affected":[{"fixed":"9.0.118","introduced":"0"},{"fixed":"10.1.55","introduced":"10.1.0-M1"},{"fixed":"11.0.22","introduced":"11.0.0-M1"}],"component":"org.apache.tomcat:tomcat-catalina","cve_ids":["CVE-2026-42498"],"ecosystem":"Maven","epss":0.00646,"exploited":false,"fixed_versions":["9.0.118","10.1.55","11.0.22"],"ghsa_id":"GHSA-fv25-8xcx-gqjc","id":"tcs_01M5N8WPG09AS7F74F6FEFH31Z","modified_at":"2026-09-10T03:51:05.853750997Z","published_at":"2026-05-12T18:30:38Z","references":["https://osv.dev/vulnerability/GHSA-fv25-8xcx-gqjc","https://nvd.nist.gov/vuln/detail/CVE-2026-42498","https://github.com/apache/tomcat/commit/169d725788ea6aec217ecac70fe4161c837ba423","https://github.com/apache/tomcat/commit/6cbe274592ef2d11607b5b188e1df649de52f8d5","https://github.com/apache/tomcat/commit/b7b173694d588ddcfa432f079baf763cbbbaa5c4","https://github.com/apache/tomcat","https://lists.apache.org/thread/n61zwf75jrv09rz90j4jssncm244bwdb","https://tomcat.apache.org/security-10.html","https://tomcat.apache.org/security-11.html","https://tomcat.apache.org/security-9.html","http://www.openwall.com/lists/oss-security/2026/05/12/14"],"severity":{"label":"high","score":7.3},"sources":[{"source":"osv","source_id":"GHSA-fv25-8xcx-gqjc#Maven/org.apache.tomcat:tomcat-catalina","url":"https://osv.dev/vulnerability/GHSA-fv25-8xcx-gqjc"}],"summary":"Apache Tomcat - WebSocket authentication header exposure"}