Description
Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie. When a client logs out presenting its credential as an Authorization bearer header instead, the endpoint returns its normal logout response but revokes nothing, so the token remains valid until it expires. An attacker who already holds a copy of that token keeps the victim's access after the victim has logged out and believes the session ended; the default token lifetime is 24 hours and is configurable.

Affects API clients that authenticate with a bearer token rather than the browser session cookie. The attacker must already possess a copy of a valid token; obtaining one is outside the scope of this issue, and no privileges beyond the victim's own are gained.

Users of apache-airflow are recommended to upgrade to apache-airflow version 3.3.2 or later, which fixes the issue.
Published: 2026-09-21
Score: n/a
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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Remediation

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History

Mon, 21 Sep 2026 14:45:00 +0000

Type Values Removed Values Added
Description Apache Airflow: the Core API logout endpoint revokes only a session token presented as the _token cookie. When a client logs out presenting its credential as an Authorization bearer header instead, the endpoint returns its normal logout response but revokes nothing, so the token remains valid until it expires. An attacker who already holds a copy of that token keeps the victim's access after the victim has logged out and believes the session ended; the default token lifetime is 24 hours and is configurable. Affects API clients that authenticate with a bearer token rather than the browser session cookie. The attacker must already possess a copy of a valid token; obtaining one is outside the scope of this issue, and no privileges beyond the victim's own are gained. Users of apache-airflow are recommended to upgrade to apache-airflow version 3.3.2 or later, which fixes the issue.
Title Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiry
Weaknesses CWE-613
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: apache

Published:

Updated: 2026-09-21T14:33:42.328Z

Reserved: 2026-09-07T15:02:47.876Z

Link: CVE-2026-86473

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-21T15:17:32.997

Modified: 2026-09-21T15:17:32.997

Link: CVE-2026-86473

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-21T15:45:16Z

Weaknesses