What is CVE-2026-48726?

CVE-2026-48726 is a medium-severity vulnerability in Apache Airflow, classified under Insufficient Session Expiration. CVSS score: 6.5/10. Published 2026-06-01.

How severe is CVE-2026-48726?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Apache Airflow

CVE-2026-48726

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.

Published 2026-06-01 · last modified 2026-07-21.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002

Affected products

Apache Airflow
Apache Software Foundation Airflow — versions 0

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

github.com/apache/airflow/pull/67289 (Patch, patch, Issue Tracking)
lists.apache.org/thread/630jg4z6cjkv4m2yv2ljgmf1zhdj1vqx (vendor-advisory, Mailing List, Vendor Advisory)
www.cve.org/CVERecord (related, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2026-48726?: CVE-2026-48726 is a medium-severity vulnerability in Apache Airflow, classified under Insufficient Session Expiration. CVSS score: 6.5/10. Published 2026-06-01.
How severe is CVE-2026-48726?: Medium severity. CVSS v3 base score is 6.5 out of 10.