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CVE-2026-86473

CVE-2026-86473 · Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiry

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 9.1 · Critical · EPSS 0.7% · Fix available

Published
Updated

Stack: python

Affected products and versions

  • apache airflow

    Versions
    • ≥ 3.0.0, < 3.3.2: Affected (semver)

    Update to 3.3.2

  • apache-airflow PyPI

    Versions
    • 3.0.0
    • 3.0.1
    • 3.0.1rc1
    • 3.0.2
    • 3.0.2rc1
    • 3.0.2rc2
    • 3.0.3
    • 3.0.3rc1
    • 3.0.3rc2
    • 3.0.3rc3
    • 3.0.3rc4
    • 3.0.3rc5
    • 3.0.3rc6
    • 3.0.4
    • 3.0.4rc1
    • 3.0.4rc2
    • 3.0.5
    • 3.0.5rc1
    • 3.0.5rc2
    • 3.0.5rc3
    • 3.0.6
    • 3.0.6rc1
    • 3.0.6rc2
    • 3.1.0
    • 3.1.0b1
    • 3.1.0b2
    • 3.1.0rc1
    • 3.1.0rc2
    • 3.1.1
    • 3.1.1rc1
    • 3.1.1rc2
    • 3.1.2
    • 3.1.2rc1
    • 3.1.2rc2
    • 3.1.3
    • 3.1.3rc1
    • 3.1.4
    • 3.1.4rc1
    • 3.1.4rc2
    • 3.1.5
    • 3.1.5rc1
    • 3.1.6
    • 3.1.6rc1
    • 3.1.7
    • 3.1.7rc1
    • 3.1.7rc2
    • 3.1.8
    • 3.1.8rc1
    • 3.1.8rc2
    • 3.2.0
    • 3.2.0b1
    • 3.2.0b2
    • 3.2.0rc1
    • 3.2.0rc2
    • 3.2.1
    • 3.2.1rc1
    • 3.2.1rc2
    • 3.2.1rc3
    • 3.2.2
    • 3.2.2rc1
    • 3.2.2rc2
    • 3.2.2rc3
    • 3.3.0
    • 3.3.0b1
    • 3.3.0b2
    • 3.3.0rc1
    • 3.3.0rc2
    • 3.3.1
    • 3.3.1rc1
    • 3.3.1rc2
    • 3.3.2rc1
    Affected ranges
    • ECOSYSTEM: ≥ 3.0.0, < 3.3.2

    Update to 3.3.2

Original sources

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