{"id":"CVE-2026-95616","state":"PUBLISHED","title":"Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions","description":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue.","publishedAt":"2026-09-30T12:25:28.399Z","updatedAt":"2026-09-30T13:17:31.672Z","severity":{"score":7.5,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"apache","products":["Apache Software Foundation Apache WSS4J"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache WSS4J","packageName":"org.apache.wss4j:wss4j-ws-security-common","packageURL":"pkg:maven/org.apache.wss4j/wss4j-ws-security-common","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThan":"4.0.2","versionType":"semver"},{"version":"3.0.0","status":"affected","lessThan":"3.0.6","versionType":"semver"},{"version":"0","status":"affected","lessThan":"2.4.4","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":["https://lists.apache.org/thread.html/sdf0fsphkg4qbj7nh2brjgwvcmd67hct","http://www.openwall.com/lists/oss-security/2026/09/30/14"],"weaknesses":["CWE-190"],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/95xxx/CVE-2026-95616.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-95616","state":"PUBLISHED","datePublished":"2026-09-30T12:25:28.399Z","dateUpdated":"2026-09-30T13:17:31.672Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2026-09-22T10:04:52.017Z"},"containers":{"cna":{"title":"Apache WSS4J: Unauthenticated denial of service via integer overflow in DER parsing of X.509 certificate extensions","descriptions":[{"lang":"en","value":"An integer overflow in WSS4J's DER bounds check lets an oversized allocation pass validation. An unauthenticated attacker can send a SOAP message carrying an X.509 certificate whose SubjectKeyIdentifier extension declares a length of 0x7FFFFFFF; WSS4J decodes this while resolving the signature's key reference, before the message is authenticated, so an eleven-byte extension triggers a 2 GB allocation. Repeated requests exhaust server memory.\nUsers are recommended to upgrade to versions 4.0.2 or 3.0.6 or 2.4.4, which fix this issue."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache WSS4J","packageName":"org.apache.wss4j:wss4j-ws-security-common","packageURL":"pkg:maven/org.apache.wss4j/wss4j-ws-security-common","defaultStatus":"unaffected","versions":[{"version":"4.0.0","status":"affected","lessThan":"4.0.2","versionType":"semver"},{"version":"3.0.0","status":"affected","lessThan":"3.0.6","versionType":"semver"},{"version":"0","status":"affected","lessThan":"2.4.4","versionType":"semver"}],"collectionURL":"https://repo.maven.apache.org/maven2"}],"references":[{"url":"https://lists.apache.org/thread.html/sdf0fsphkg4qbj7nh2brjgwvcmd67hct","tags":["vendor-advisory"]}],"metrics":[{"other":{"type":"Textual description of severity","content":{"text":"important"}},"scenarios":[{"lang":"en","value":"GENERAL"}]}],"providerMetadata":{"shortName":"apache","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateUpdated":"2026-09-30T12:25:28.399Z"},"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 1.0.3"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.5,"attackVector":"NETWORK","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"NONE","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"timestamp":"2026-09-30T12:43:35.342143Z","id":"CVE-2026-95616","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-190","type":"CWE","lang":"en","description":"CWE-190 Integer Overflow or Wraparound"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-30T12:43:38.079Z"}},{"title":"CVE Program Container","references":[{"url":"http://www.openwall.com/lists/oss-security/2026/09/30/14"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2026-09-30T13:17:31.672Z"}}]}}}