CVE-2026-55672: ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that
ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's OAuth2 and OIDC CodeExchange, RefreshToken, and device token flows fail to verify that the requesting client matches the client that initiated the authorization flow, allowing intercepted grants or refresh tokens to be exchanged under a different client. This issue is fixed in versions 3.4.12 and 4.15.2.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-55672
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-55672 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for ZITADEL is an
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
- highCVE-2026-56668: ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's OAuth2 Toke…nvd · 2026-07-10
- highCVE-2026-56667: ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL Login V2 OIDC…nvd · 2026-07-10
- mediumCVE-2026-56666: ZITADEL is an open source identity management platform. Prior to 4.15.3, ZITADEL's external id…nvd · 2026-07-10
- mediumCVE-2026-56665: ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL is…nvd · 2026-07-10
- mediumCVE-2026-56664: ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL's …nvd · 2026-07-10
- unknownCVE-2026-55671: ZITADEL is an open source identity management platform. From 4.0.0-rc.1 through 4.15.1, ZITADE…nvd · 2026-07-10
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