CVE-2026-86473

9.1 CRITICALpublic exploit available

Published 2026-09-21 · Updated 2026-09-21

AI risk analysis

Summary: This flaw allows an attacker to maintain access after a user logs out if they have a valid bearer token, posing a significant security risk.
Exploitability: Exploitation requires possession of a valid token and knowledge of the logout endpoint; moderately difficult.
Blast radius: If exploited, the impact is limited to the duration of the token (default 24 hours), but can still allow unauthorized access during that period.
Prioritized remediation: Upgrade Apache Airflow to version 3.3.2 or later to address this vulnerability.

auth-bypassapiwebtoken-exploitation

Analysis generated locally by qwen2.5:7b-instruct (no data left the box). AI-assisted — verify against primary sources before acting.

NVD 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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Weaknesses

CWE-613

Public exploit & PoC references

https://github.com/apache/airflow/pull/72649

All references

Source data: NVD (nvd.nist.gov), public domain. Exploit-DB.ai adds local AI analysis for defensive use only.

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