{"id":"CVE-2026-109372","revision":null,"records":[{"revision":"ff0eb336a13147e880494bcef829808e","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109372","aliases":[],"title":"ZITADEL 3.0.0 before 4.19.2 Account Takeover via SAML Identity-Provider Confusion","description":"ZITADEL 4.x before 4.19.2 and 3.x through 3.4.15 contains an authentication bypass in the SAML identity-provider intent callback, which verifies the assertion signature using the provider named in the request URL but resolves the user from the login intent without checking they match. Attackers with organization-administrator permission can register a SAML provider with their own signing key to obtain authenticated sessions as any user linked to another SAML provider on the instance, including in other organizations.","state":0,"publishedAt":"2026-10-12T16:05:44.977+00:00","modifiedAt":"2026-10-13T16:23:38.085+00:00","affected":[{"ecosystem":"Vendor product","name":"zitadel","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"zitadel\",\n                    \"product\": \"zitadel\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"3.0.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"4.19.2\"\n                        },\n                        {\n                            \"version\": \"4.19.2\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","score":9.3,"severity":"CRITICAL"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N","score":8.7,"severity":"HIGH"}],"references":["https://github.com/zitadel/zitadel/security/advisories/GHSA-x4c7-fpcx-w9q6","https://www.vulncheck.com/advisories/zitadel-3.0.0-before-4.19.2-account-takeover-via-saml-identity-provider-confusion"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109372","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109372","identifiers":["CVE-2026-109372"]},"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":"2026-11-10T07:03:58.7434242+00:00","complete":true,"records":1096,"lastAttemptAt":"2026-11-10T07:03:58.7434242+00:00","lastSuccessAt":"2026-11-10T07:03:59.049149+00:00","error":null,"lastVerifiedAt":"2026-11-10T07:03:59.049149+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. No reader inventory is sent.","generation":"enrichment-d71a61bd41e147f4a9126c2a3d45b565","complete":false,"records":13695,"lastAttemptAt":"2026-11-10T07:04:24.141829+00:00","lastSuccessAt":"2026-11-10T07:04:24.138+00:00","error":"100 identifier lookups failed; latest failures include request timeout. 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