CVE-2026-32245

Tinyauth is an authentication and authorization server. Prior to 5.0.3, the OIDC token endpoint does not verify that the client exchanging an authorization code is the same client the code was issued to. A malicious OIDC client operator can exchange another client's authorization code using their...

CVE-2026-27478

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

GO-2026-4689 Tinyauth's OIDC authorization codes are not bound to client on token exchange in github.com/steveiliop56/tinyauth

Tinyauth's OIDC authorization codes are not bound to client on token exchange in github.com/steveiliop56/tinyauth. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positive report...

CVE-2026-32245 Tinyauth's OIDC authorization codes are not bound to client on token exchange

Tinyauth is an authentication and authorization server. Prior to 5.0.3, the OIDC token endpoint does not verify that the client exchanging an authorization code is the same client the code was issued to. A malicious OIDC client operator can exchange another client's authorization code using their...

CVE-2026-32245 Tinyauth's OIDC authorization codes are not bound to client on token exchange

Tinyauth is an authentication and authorization server. Prior to 5.0.3, the OIDC token endpoint does not verify that the client exchanging an authorization code is the same client the code was issued to. A malicious OIDC client operator can exchange another client's authorization code using their...

GHSA-3Q28-QJRV-QR39 Tinyauth vulnerable to TOTP/2FA bypass via OIDC authorize endpoint

Summary The OIDC authorization endpoint allows users with a TOTP-pending session password verified, TOTP not yet completed to obtain authorization codes. An attacker who knows a user's password but not their TOTP secret can obtain valid OIDC tokens, completely bypassing the second factor. Details...

Tinyauth vulnerable to TOTP/2FA bypass via OIDC authorize endpoint

Summary The OIDC authorization endpoint allows users with a TOTP-pending session password verified, TOTP not yet completed to obtain authorization codes. An attacker who knows a user's password but not their TOTP secret can obtain valid OIDC tokens, completely bypassing the second factor. Details...

GHSA-XG2Q-62G2-CVCM Tinyauth's OIDC authorization codes are not bound to client on token exchange

Summary The OIDC token endpoint does not verify that the client exchanging an authorization code is the same client the code was issued to. A malicious OIDC client operator can exchange another client's authorization code using their own client credentials, obtaining tokens for users who never...

EUVD-2026-11679

Tinyauth's OIDC authorization codes are not bound to client on token exchange...

Tinyauth's OIDC authorization codes are not bound to client on token exchange

Summary The OIDC token endpoint does not verify that the client exchanging an authorization code is the same client the code was issued to. A malicious OIDC client operator can exchange another client's authorization code using their own client credentials, obtaining tokens for users who never...

Origin Validation Error

Overview Affected versions of this package are vulnerable to Origin Validation Error in the token exchange endpoint /api/1.0/unity-control/auth/tokens that processes JWTs. An attacker can gain unauthorized access and impersonate any user by supplying a JWT with a malicious issuer, as the endpoint...

CVE-2026-27478

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

CVE-2026-27478

CVE-2026-27478 relates to Unity Catalog (0.4.0 and earlier). The vulnerability is a critical authentication bypass in the token exchange endpoint at /api/1.0/unity-control/auth/tokens, where the issuer (iss) claim from incoming JWTs is used to dynamically fetch the JWKS endpoint for signature val...

CVE-2026-27478 Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

CVE-2026-27478

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

CVE-2026-27478 Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

CVE-2026-27478 Unity Catalog has a JWT Issuer Validation Bypass Allows Complete User Impersonation

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

CVE-2026-27478: Authentication Bypass by Spoofing

Unity Catalog is an open, multi-modal Catalog for data and AI. In 0.4.0 and earlier, a critical authentication bypass vulnerability exists in the Unity Catalog token exchange endpoint /api/1.0/unity-control/auth/tokens. The endpoint extracts the issuer iss claim from incoming JWTs and uses it to...

PT-2026-24800

Name of the Vulnerable Software and Affected Versions Unity Catalog versions 0.4.0 and earlier Description Unity Catalog is an open, multi-modal Catalog for data and AI. A critical authentication bypass exists in the Unity Catalog token exchange endpoint, /api/1.0/unity-control/auth/tokens. The...

Incorrect Authorization

Overview Affected versions of this package are vulnerable to Incorrect Authorization in the OIDC token exchange process. An attacker can obtain tokens for unauthorized clients or reuse expired authorization codes by submitting a valid authorization code with a different client ID or by using an...