{"id":"CVE-2026-109374","revision":"ea813256a54d4f10b0693455548cea7b","records":[{"revision":"ea813256a54d4f10b0693455548cea7b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-109374","aliases":[],"title":"ZITADEL 3.0.0 before 4.19.2 Privilege Escalation via OIDC Token Exchange Impersonation","description":"ZITADEL 3.0.0 before 4.19.2 contains a privilege escalation vulnerability in OIDC token exchange that allows end-user impersonators to impersonate administrators including IAM_OWNER by bypassing the admin.impersonation check. Attackers holding IAM_END_USER_IMPERSONATOR or ORG_END_USER_IMPERSONATOR roles can sign in to relying applications as administrators with their roles and claims.","state":0,"publishedAt":"2026-10-12T16:05:46.811+00:00","modifiedAt":"2026-10-13T17:27:50.947+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:N/VI:N/VA:N/SC:L/SI:L/SA:N","score":5.1,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N","score":5.5,"severity":"MEDIUM"}],"references":["https://github.com/zitadel/zitadel/security/advisories/GHSA-w4gv-rcwj-w6r5","https://www.vulncheck.com/advisories/zitadel-3.0.0-before-4.19.2-privilege-escalation-via-oidc-token-exchange-impersonation"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109374","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-109374","identifiers":["CVE-2026-109374"]},"retained":false,"historicalAffected":[]}],"coverage":[]}