{"schemaVersion":3,"id":"USN-8417-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"tomcat9, tomcat10 vulnerabilities\n\nIt was discovered that Tomcat did not properly limit the size of\nWebDAV LOCK and PROPFIND request bodies. A remote attacker could\nuse this issue to cause Tomcat to consume excessive memory,\nresulting in a denial of service. (CVE-2026-41284)\n\nIt was discovered that Tomcat incorrectly validated HTTP/2 header\nfields. A remote attacker could use this issue to cause Tomcat to\ncrash or possibly execute arbitrary code. (CVE-2026-41293)\n\nIt was discovered that Tomcat did not properly clear HTTP\nauthentication headers during WebSocket connection upgrades and\nredirects. A remote attacker could use this issue to obtain\nsensitive credentials. (CVE-2026-42498)\n\nIt was discovered that Tomcat incorrectly handled digest\nauthentication. A remote attacker could possibly use this issue to\nbypass authentication restrictions. (CVE-2026-43512)\n\nIt was discovered that Tomcat incorrectly handled case sensitivity\nin LockOutRealm. A remote attacker could possibly use this issue to\nbypass account lockout protections and obtain sensitive information.\n(CVE-2026-43513)\n\nIt was discovered that Tomcat incorrectly handled authorization\nwhen multiple method constraints defined the same HTTP method. A\nremote attacker could possibly use this issue to bypass\nauthorization restrictions. (CVE-2026-43515)","dates":{"published":"2026-06-10T06:44:15.000Z","modified":"2026-06-11T10:59:17.819Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":null,"severity":"unknown","version":null,"versionLabel":null,"source":null,"vector":null,"computed":false,"selection":"none"},"metrics":[]},"epss":{"probability":null,"percentile":null,"severity":"unknown","asOf":null,"change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[],"last30":[]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[],"affected":[{"vendor":"ubuntu","product":"tomcat10","name":"tomcat10","label":"tomcat10","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/tomcat10","purlType":"deb","versions":[{"text":"< 10.1.16-1ubuntu0.1~esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 10.1.40-1ubuntu1.25.10.1","noFixRecorded":false,"fixedIn":null},{"text":"< 10.1.40-1ubuntu1.26.04.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 10.1.16-1ubuntu0.1~esm4 | < 10.1.40-1ubuntu1.25.10.1 | < 10.1.40-1ubuntu1.26.04.1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"tomcat9","name":"tomcat9","label":"tomcat9","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/tomcat9","purlType":"deb","versions":[{"text":"< 9.0.16-3ubuntu0.18.04.2+esm8","noFixRecorded":false,"fixedIn":null},{"text":"< 9.0.31-1ubuntu0.9+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 9.0.58-1ubuntu0.2+esm4","noFixRecorded":false,"fixedIn":null},{"text":"< 9.0.70-2ubuntu0.1+esm3","noFixRecorded":false,"fixedIn":null},{"text":"< 9.0.95-1ubuntu1.1","noFixRecorded":false,"fixedIn":null},{"text":"< 9.0.115-1ubuntu0.1","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 9.0.16-3ubuntu0.18.04.2+esm8 | < 9.0.31-1ubuntu0.9+esm3 | < 9.0.58-1ubuntu0.2+esm4 | < 9.0.70-2ubuntu0.1+esm3 | < 9.0.95-1ubuntu1.1 | < 9.0.115-1ubuntu0.1","eol":null,"hubHref":null}],"affectedCount":2,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8417-1","label":"ubuntu.com/security/notices/USN-8417-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-41284","label":"ubuntu.com/security/CVE-2026-41284","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-41293","label":"ubuntu.com/security/CVE-2026-41293","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-42498","label":"ubuntu.com/security/CVE-2026-42498","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-43512","label":"ubuntu.com/security/CVE-2026-43512","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-43513","label":"ubuntu.com/security/CVE-2026-43513","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-43515","label":"ubuntu.com/security/CVE-2026-43515","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":["CVE-2026-41284","CVE-2026-41293","CVE-2026-42498","CVE-2026-43512","CVE-2026-43513","CVE-2026-43515"]},"timeline":[{"kind":"published","date":"2026-06-10T06:44:15.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-06-11T10:59:17.819Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":0,"level":"minimal","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T21:01:45.228Z","stale":false,"partial":false}}