{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89209","assignerOrgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","state":"PUBLISHED","assignerShortName":"siemens","dateReserved":"2026-09-11T07:45:20.919Z","datePublished":"2026-10-26T10:41:01.088Z","dateUpdated":"2026-10-31T01:13:36.246Z"},"containers":{"cna":{"providerMetadata":{"orgId":"cec7a2ec-15b4-4faf-bd53-b40f371f3a77","shortName":"siemens","dateUpdated":"2026-10-26T10:41:01.088Z"},"descriptions":[{"lang":"en","value":"A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 11 compatible) (All versions < V4.2.4), Mendix SAML (Mendix 9 compatible) (All versions < V3.6.29). Affected versions of the module do not properly protect against SAML assertion replay in IdP-initiated authentication flows. This could allow unauthenticated remote attackers to gain unauthorized access to the application by replaying a valid SAML response."}],"affected":[{"vendor":"Siemens","product":"Mendix SAML (Mendix 10 compatible)","versions":[{"status":"affected","version":"0","lessThan":"V4.2.4","versionType":"custom"}],"defaultStatus":"unknown"},{"vendor":"Siemens","product":"Mendix SAML (Mendix 11 compatible)","versions":[{"status":"affected","version":"0","lessThan":"V4.2.4","versionType":"custom"}],"defaultStatus":"unknown"},{"vendor":"Siemens","product":"Mendix SAML (Mendix 9 compatible)","versions":[{"status":"affected","version":"0","lessThan":"V3.6.29","versionType":"custom"}],"defaultStatus":"unknown"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N","baseScore":6.8,"baseSeverity":"MEDIUM"}},{"cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","baseScore":7.6,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"lang":"en","cweId":"CWE-294","description":"CWE-294: Authentication Bypass by Capture-replay","type":"CWE"}]}],"references":[{"url":"https://cert-portal.siemens.com/productcert/html/ssa-137528.html"}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-31T01:13:25.336574Z","id":"CVE-2026-89209","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-31T01:13:36.246Z"}}]}}