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CVE-2026-55672

ZITADEL: Missing client_id binding in OIDC authorization code exchange and refresh token flows (RFC 6749 Section 4.1.3 violation) PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
zitadel / zitadelaffected >= 4.0.0-rc.1, < 4.15.2; affected < 3.4.12

CWE

CWE-287, CWE-863

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.