CVE-2026-86466: Origin Validation Error

Apache Airflow FAB provider: the Authentik OAuth path in the FAB auth manager does not validate the issuer or audience claims of the idtoken it accepts. An attacker holding a token that the same Authentik identity provider minted for a different client application can present it to Airflow and be...

CVE-2026-82310: Insufficient Session Expiration

Apache Airflow FAB provider: deactivating a user account does not stop tokens issued to that account before deactivation. Password authentication correctly rejects the disabled account, but the Core API continues to accept an existing, unexpired token naming it, and lets that token mint a...

PT-2026-93421

Name of the Vulnerable Software and Affected Versions apache-airflow-providers-fab versions prior to 3.9.0 Description The Authentik OAuth path in the FAB auth manager fails to validate the issuer or audience claims of the accepted id token. This allows an attacker who possesses a valid token...

CVE-2026-82311: Insufficient Session Expiration

Apache Airflow FAB provider: resetting a user's password does not delete that user's existing database-backed sessions, despite documented behaviour that it does. The cleanup compares the string identifier Flask-Login stores in the session against the user's integer database identifier, so the...

Origin Validation Error

Overview apache-airflow-providers-fab is a Provider package apache-airflow-providers-fab for Apache Airflow Affected versions of this package are vulnerable to Origin Validation Error due to missing issuer and audience validation in decodeandvalidateazurejwt in...

CVE-2026-75156

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD idtokens during OAuth login. Deployments are affected only when the FAB auth manager is configured with Azure AD as an OAuth provider. Because the signing keys are fetched from Microsoft's...

CVE-2026-75156 Apache Airflow FAB provider: FAB Azure AD OAuth: id_token issuer/audience not validated — cross-tenant authentication bypass

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD idtokens during OAuth login. Deployments are affected only when the FAB auth manager is configured with Azure AD as an OAuth provider. Because the signing keys are fetched from Microsoft's...

CVE-2026-75156 Apache Airflow FAB provider: FAB Azure AD OAuth: id_token issuer/audience not validated — cross-tenant authentication bypass

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD idtokens during OAuth login. Deployments are affected only when the FAB auth manager is configured with Azure AD as an OAuth provider. Because the signing keys are fetched from Microsoft's...

CVE-2026-75156

The apache-airflow-providers-fab package (versions 3.7.3 through 3.8.0) is vulnerable to an Origin Validation Error during OAuth login when configured with Azure AD. The root cause is the failure to validate the issuer or audience of Azure AD id_tokens within the _decode_and_validate_azure_jwt fu...

EUVD-2026-72933

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD idtokens during OAuth login. Deployments are affected only when the FAB auth manager is configured with Azure AD as an OAuth provider. Because the signing keys are fetched from Microsoft's...

CVE-2026-75156 Apache Airflow FAB provider: FAB Azure AD OAuth: id_token issuer/audience not validated — cross-tenant authentication bypass

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD idtokens during OAuth login. Deployments are affected only when the FAB auth manager is configured with Azure AD as an OAuth provider. Because the signing keys are fetched from Microsoft's...

PT-2026-87173

Name of the Vulnerable Software and Affected Versions Apache Airflow FAB provider versions 3.7.3 through 3.8.0 Description An issue exists during OAuth login when the FAB auth manager is configured with Azure AD as an OAuth provider. The software fails to validate the issuer or audience of Azure ...

CVE-2026-75156: Origin Validation Error

Apache Airflow FAB provider versions 3.7.3 through 3.8.0 do not validate the issuer or audience of Azure AD idtokens during OAuth login. Deployments are affected only when the FAB auth manager is configured with Azure AD as an OAuth provider. Because the signing keys are fetched from Microsoft's...

CVE-2026-59243

The FAB auth manager's Azure AD OAuth login defaulted verifysignature=False when decoding the ID token, so an attacker able to present a forged or unsigned alg:none ID token to the OAuth callback could bypass authentication and log in as an arbitrary user, including one holding the Admin role...

CVE-2026-59243

The FAB auth manager's Azure AD OAuth login defaulted verifysignature=False when decoding the ID token, so an attacker able to present a forged or unsigned alg:none ID token to the OAuth callback could bypass authentication and log in as an arbitrary user, including one holding the Admin role...

CVE-2026-59243 Apache Airflow FAB provider: FAB auth manager: JWT signature verification disabled by default for Azure AD OAuth (`verify_signature` defaults to `False`)

The FAB auth manager's Azure AD OAuth login defaulted verifysignature=False when decoding the ID token, so an attacker able to present a forged or unsigned alg:none ID token to the OAuth callback could bypass authentication and log in as an arbitrary user, including one holding the Admin role...

CVE-2026-59243

The apache-airflow-providers-fab component in Apache Airflow is vulnerable to an authentication bypass due to the FAB auth manager's Azure AD OAuth login defaulting verify_signature=False when decoding ID tokens. An attacker can present a forged or unsigned (alg:none) ID token to the OAuth callba...

CVE-2026-59243: Improper Verification of Cryptographic Signature

The FAB auth manager's Azure AD OAuth login defaulted verifysignature=False when decoding the ID token, so an attacker able to present a forged or unsigned alg:none ID token to the OAuth callback could bypass authentication and log in as an arbitrary user, including one holding the Admin role...

Use of Incorrectly-Resolved Name or Reference

Overview apache-airflow-providers-fab is a Provider package apache-airflow-providers-fab for Apache Airflow Affected versions of this package are vulnerable to Use of Incorrectly-Resolved Name or Reference through the resourcename function in permissions.py and the mirrored core permissions modul...

CVE-2026-59245

In the Apache Airflow FAB auth manager, a DAG whose dagid is DAGs collided with the global all-DAGs permission resource name produced by resourcename, so a user granted per-DAG accesscontrol on that one DAG was silently granted the global all-DAGs permission privilege escalation. The escalation...