{"id":"CVE-2026-43512","state":"PUBLISHED","title":"Apache Tomcat: Digest authenticator will authenticate any unknown user","description":"DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0.\nOlder unsupported versions any also be affect\n\nUsers are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue.","publishedAt":"2026-05-12T15:24:02.424Z","updatedAt":"2026-05-14T19:53:34.555Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache Tomcat"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Tomcat","defaultStatus":"unaffected","versions":[{"version":"11.0.0-M1","status":"affected","lessThanOrEqual":"11.0.21","versionType":"semver"},{"version":"10.1.0-M1","status":"affected","lessThanOrEqual":"10.1.54","versionType":"semver"},{"version":"9.0.0.M1","status":"affected","lessThanOrEqual":"9.0.117","versionType":"semver"},{"version":"8.5.0","status":"affected","lessThanOrEqual":"8.5.100","versionType":"semver"},{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.0.109","versionType":"semver"},{"version":"0","status":"unknown","lessThan":"7.0.0","versionType":"semver"}]}],"references":["https://lists.apache.org/thread/7x09x7o12solvclslw3sz0288xc8wx73","http://www.openwall.com/lists/oss-security/2026/05/12/8"],"weaknesses":["CWE-592"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43512.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43512","state":"PUBLISHED","datePublished":"2026-05-12T15:24:02.424Z","dateUpdated":"2026-05-14T19:53:34.555Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-05-01T16:19:22.016Z"},"containers":{"cna":{"title":"Apache Tomcat: Digest authenticator will authenticate any unknown user","descriptions":[{"lang":"en","value":"DEPRECATED: Authentication Bypass Issues vulnerability in digest authentication in Apache Tomcat.\n\nThis issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.21, from 10.1.0-M1 through 10.1.54, from 9.0.0.M1 through 9.0.117, from 8.5.0 through 8.5.100, from before 7.0.0.\nOlder unsupported versions any also be affect\n\nUsers are recommended to upgrade to version 11.0.22, 10.1.55 or 9.0.118 which fix the issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Tomcat","defaultStatus":"unaffected","versions":[{"version":"11.0.0-M1","status":"affected","lessThanOrEqual":"11.0.21","versionType":"semver"},{"version":"10.1.0-M1","status":"affected","lessThanOrEqual":"10.1.54","versionType":"semver"},{"version":"9.0.0.M1","status":"affected","lessThanOrEqual":"9.0.117","versionType":"semver"},{"version":"8.5.0","status":"affected","lessThanOrEqual":"8.5.100","versionType":"semver"},{"version":"7.0.0","status":"affected","lessThanOrEqual":"7.0.109","versionType":"semver"},{"version":"0","status":"unknown","lessThan":"7.0.0","versionType":"semver"}]}],"references":[{"url":"https://lists.apache.org/thread/7x09x7o12solvclslw3sz0288xc8wx73","tags":["vendor-advisory"]}],"metrics":[{"other":{"content":{"text":"moderate"},"type":"Textual description of severity"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-592","description":"CWE-592 DEPRECATED: Authentication Bypass Issues","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-05-12T15:24:02.424Z"},"source":{"discovery":"EXTERNAL"},"x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/05/12/8"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-05-12T17:40:59.559Z"}},{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":9.8,"attackVector":"NETWORK","baseSeverity":"CRITICAL","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-05-14T16:38:42.418842Z","id":"CVE-2026-43512","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-14T19:53:34.555Z"}}]}}}