{"schemaVersion":3,"id":"CVE-2026-97791","aliases":[],"status":"published","duplicateOf":null,"title":null,"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.\nUsers are recommended to upgrade to versions 4.2.4 or 4.1.9 or 3.6.13, which fix this issue.","dates":{"published":"2026-10-09T10:19:26.153Z","modified":"2026-10-15T17:32:09.718Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":7.5,"severity":"high","version":"3.1","versionLabel":"v3.1","source":"CVE.org","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","computed":false,"selection":"backend-summary"},"metrics":[{"version":"3.1","versionLabel":"v3.1","source":"CVE.org","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false},{"version":"3.1","versionLabel":"v3.1","source":"NVD","score":7.5,"severity":"high","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00248,"percentile":0.1507,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":null,"baselineDate":null,"baselineScore":null},"history":[{"date":"2026-10-10T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00248,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00248,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00248,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00248,"percentile":0.1507}],"last30":[{"date":"2026-10-10T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00168,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00248,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00248,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00248,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00248,"percentile":0.1507}]},"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":[{"id":"CWE-362","name":"Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')","description":"The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.","type":"weakness","status":"Draft","abstraction":"Class","likelihoodOfExploit":"Medium","url":"https://cwe.mitre.org/data/definitions/362.html"}],"affected":[{"vendor":"apache software foundation","product":"apache cxf","name":"Apache CXF","label":"apache cxf","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"≥ 4.2.0, < 4.2.4","noFixRecorded":false,"fixedIn":null},{"text":"≥ 4.0.0, < 4.1.9","noFixRecorded":false,"fixedIn":null},{"text":"< 3.6.13","noFixRecorded":false,"fixedIn":null}],"versionsText":"≥ 4.2.0, < 4.2.4 | ≥ 4.0.0, < 4.1.9 | < 3.6.13","eol":null,"hubHref":"/vendor/apache_software_foundation/apache_cxf"}],"affectedCount":1,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://lists.apache.org/thread.html/ssdr417qgms9fjl0m8802xd8170wnk1l","label":"lists.apache.org/thread.html/ssdr417qgms9fjl0m8802xd8170wnk1l","hostname":"lists.apache.org","tags":["Vendor Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2026/10/09/10","label":"www.openwall.com/lists/oss-security/2026/10/09/10","hostname":"www.openwall.com","tags":[]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-10-09T10:19:26.153Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-10-15T17:32:09.718Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":30,"level":"medium","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-19T23:06:21.857Z","stale":false,"partial":false}}