{"id":"CVE-2026-97791","revision":null,"records":[{"revision":"35a949dcadad4a6fabff12b195a21336","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-97791","aliases":[],"title":"Apache CXF: STSTokenValidator can accept untrusted SAML assertions because it shares validation state between requests","description":"In Apache CXF, STSTokenValidator checks whether a SAML assertion is signed by a trusted certificate before deciding to send it to the STS. That result was stored in one object shared by all requests, so one request could read another's result. A remote, unauthenticated attacker could send a forged assertion signed with an untrusted certificate while legitimate requests were being processed, and it could be accepted as trusted without ever reaching the STS. Only services that use STSTokenValidator to validate SAML tokens without alwaysValidateToSts set are affected.\u00A0\nUsers are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.","state":0,"publishedAt":"2026-10-09T10:19:26.153+00:00","modifiedAt":"2026-10-15T17:32:09.718+00:00","affected":[{"ecosystem":"https://repo.maven.apache.org/maven2","name":"org.apache.cxf:cxf-rt-ws-security","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"Apache Software Foundation\",\n                    \"product\": \"Apache CXF\",\n                    \"packageURL\": \"pkg:maven/org.apache.cxf/cxf-rt-ws-security\",\n                    \"versions\": [\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.2.0\",\n                            \"lessThan\": \"4.2.4\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"4.0.0\",\n                            \"lessThan\": \"4.1.9\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"status\": \"affected\",\n                            \"version\": \"0\",\n                            \"lessThan\": \"3.6.13\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"defaultStatus\": \"unaffected\",\n                    \"collectionURL\": \"https://repo.maven.apache.org/maven2\",\n                    \"packageName\": \"org.apache.cxf:cxf-rt-ws-security\"\n                }"}],"metrics":[],"references":["https://lists.apache.org/thread.html/ssdr417qgms9fjl0m8802xd8170wnk1l"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-97791","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-97791","identifiers":["CVE-2026-97791"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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Not a global EPSS backfill.","generation":"2026-11-09T15:04:17.9226009+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-09T15:04:17.9226009+00:00","lastSuccessAt":"2026-11-09T15:04:18.1628494+00:00","error":null,"lastVerifiedAt":"2026-11-09T15:04:18.1628497+00:00","snapshotPublishedAt":null,"importing":false,"stagedRecords":0,"checkedIdentifiers":null,"expectedIdentifiers":null,"failedIdentifiers":null},{"source":"nvd","scope":"Rolling NVD lookups of CVE aliases in current public OSV archives; 500 identifiers per refresh, rechecked after 48 hours. Not a global NVD catalog. Successful not-found lookups count as checked; they do not imply withdrawal or safety. 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