{"schemaVersion":3,"id":"USN-8551-1","aliases":[],"status":"published","duplicateOf":null,"title":null,"description":"tomcat8 vulnerabilities\n\nIt was discovered that Tomcat incorrectly handled authorization when\nmultiple method constraints defined the same HTTP method. A remote\nattacker could possibly use this issue to bypass authorization\nrestrictions. (CVE-2026-43515)\n\nIt was discovered that the Tomcat number guess example application did\nnot properly sanitize user-supplied input. An attacker could possibly\nuse this issue to inject malicious scripts, resulting in cross-site\nscripting. (CVE-2026-50229)\n\nIt was discovered that Tomcat incorrectly evaluated rewrite valve\nconditions in certain configurations. An attacker could possibly use\nthis issue to bypass rewrite rules, resulting in unauthorized access.\n(CVE-2026-53404)\n\nIt was discovered that Tomcat incorrectly omitted certain authorization\ninformation when logging the effective web.xml configuration. An\nattacker could possibly use this issue to hide authorization\nconstraints, resulting in reduced auditability. (CVE-2026-55276)","dates":{"published":"2026-07-15T14:15:28.000Z","modified":"2026-07-15T23:49:59.678Z","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":"tomcat8","name":"tomcat8","label":"tomcat8","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/tomcat8","purlType":"deb","versions":[{"text":"< 8.0.32-1ubuntu1.13+esm2","noFixRecorded":false,"fixedIn":null},{"text":"< 8.5.39-1ubuntu1~18.04.3+esm6","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 8.0.32-1ubuntu1.13+esm2 | < 8.5.39-1ubuntu1~18.04.3+esm6","eol":null,"hubHref":null}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://ubuntu.com/security/notices/USN-8551-1","label":"ubuntu.com/security/notices/USN-8551-1","hostname":"ubuntu.com","tags":["Advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-43515","label":"ubuntu.com/security/CVE-2026-43515","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-50229","label":"ubuntu.com/security/CVE-2026-50229","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-53404","label":"ubuntu.com/security/CVE-2026-53404","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-55276","label":"ubuntu.com/security/CVE-2026-55276","hostname":"ubuntu.com","tags":["REPORT"]}],"lineage":{"upstream":["CVE-2026-43515","CVE-2026-50229","CVE-2026-53404","CVE-2026-55276"],"downstream":[],"duplicates":[],"related":["CVE-2026-43515","CVE-2026-50229","CVE-2026-53404","CVE-2026-55276"]},"timeline":[{"kind":"published","date":"2026-07-15T14:15:28.000Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-07-15T23:49:59.678Z","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":"2026-10-20T03:44:27.783Z","stale":false,"partial":false}}