Severity: Moderate 

Affected versions:

- Apache Airflow (apache-airflow) before 3.2.2

Description:

A bug in Apache Airflow's auth manager logout handling left previously-issued 
JWT tokens valid after the user clicked logout in the UI: the logout flow for 
`FabAuthManager` and `KeycloakAuthManager` did not actually reach the 
underlying `revoke_token()` call, so the JWT remained accepted by the API 
server until its natural expiry. An attacker holding a previously-issued JWT 
for a logged-out user could continue to make authenticated API calls as that 
user. Affects deployments configured with `FabAuthManager` or 
`KeycloakAuthManager` (the bug does not affect SimpleAuthManager). This is a 
residual gap in the fix for CVE-2025-57735, which addressed cookie-side 
invalidation in PR #57992 / PR #61339 but did not cover the provider-side 
`revoke_token()` reachability in the FAB / Keycloak code paths. Users who 
already upgraded for CVE-2025-57735 should additionally upgrade to 
`apache-airflow` 3.2.2 or later to cover the FAB / Keycloak logout paths.

Credit:

Bernardo Curi (r3ngar_bugado) (finder)
pierrejeambrun (remediation developer)

References:

https://github.com/apache/airflow/pull/67289
https://www.cve.org/CVERecord?id=CVE-2025-57735
https://airflow.apache.org/
https://www.cve.org/CVERecord?id=CVE-2026-48726

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