CVE-2026-86473

9.1 CRITICALpublic exploit available

Published 2026-09-21 · Updated 2026-09-25

AI risk analysis

Summary: The flaw allows an attacker to maintain access to an Apache Airflow instance after a user logs out, as the logout endpoint does not revoke the token when presented via an Authorization header, leaving the token valid for up to 24 hours.
Exploitability: Exploitation is moderately easy if the attacker has a valid token, as the logout endpoint does not properly revoke the session.
Blast radius: If exploited, the attacker can maintain access to the victim's account, potentially leading to data breaches or unauthorized actions within the Airflow instance.
Detection: No reliable host or network indicator is derivable from the published description.
Prioritized remediation: Upgrade to Apache Airflow version 3.3.2 or later.

auth-bypasswebapi

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

Vendors

apache

Products

airflow

Public exploit & PoC references

https://github.com/apache/airflow/pull/72649[Issue Tracking, Vendor Advisory]

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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