{"cve":"CVE-2026-56664","nvd":{"published":"2026-07-10T18:16:23.890","modified":"2026-07-10T19:17:26.543","status":"Deferred","description":"ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's external JWT Identity Provider validation in internal/idp/providers/jwt/session.go skips the maximum token age freshness check when an incoming token omits the iat claim, allowing arbitrarily old tokens from a trusted issuer to pass authentication. This issue is fixed in versions 3.4.12 and 4.15.2.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","score":4.2},"cwes":["CWE-613"],"references":["https://github.com/zitadel/zitadel/commit/4925fab849d39a88674485d937b79e54318b48a8","https://github.com/zitadel/zitadel/commit/d1c3aa84af8fcb0f33910ada30b866f4afb551ac","https://github.com/zitadel/zitadel/releases/tag/v3.4.12","https://github.com/zitadel/zitadel/releases/tag/v4.15.2","https://github.com/zitadel/zitadel/security/advisories/GHSA-wxg7-w2v3-w38g"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:44:02.134301115+00:00"},"epss":{"cve":"CVE-2026-56664","score":0.00318,"percentile":0.24828,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wxg7-w2v3-w38g","url":"https://osv.dev/vulnerability/GHSA-wxg7-w2v3-w38g","summary":" ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider","modified":"2026-07-18T17:30:29.136371436Z","packages":[{"ecosystem":"Go","name":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","ranges":["<1.80.0-v2.20.0.20260615122908-fad02c6d9f45"],"fixed":["1.80.0-v2.20.0.20260615122908-fad02c6d9f45"]}]},{"id":"GO-2026-5732","url":"https://osv.dev/vulnerability/GO-2026-5732","summary":"ZITADEL: Missing Token Lifecyle Validation (`exp` and `iat`) in JWT IdP Provider in github.com/zitadel/zitadel","modified":"2026-07-11T04:11:11.667802884Z","packages":[{"ecosystem":"Go","name":"github.com/zitadel/zitadel","purl":"pkg:golang/github.com/zitadel/zitadel","ranges":["<1.80.0-v2.20.0.20260615122908-fad02c6d9f45"],"fixed":["1.80.0-v2.20.0.20260615122908-fad02c6d9f45"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}