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TI-2026-59167 Aliases CVE-2026-86473GHSA-9cmm-29p3-73gr

Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiry

Priority MEDIUM 49CWE-613Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-613.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00747 55th percentileScored 2026-11-07
Fix Fixed Apache Airflow (Apache Software Foundation): 3.3.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ApacheApache Airflow3.0.0 to before 3.3.23.3.2Patch availableCNA
  • Apache Airflow VendorApache Affected 3.0.0 to before 3.3.2 Fixed in 3.3.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*3.0.0 to before 3.3.2VulnerableApache
  • cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:* Versions 3.0.0 to before 3.3.2 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache Airflow (Apache Software Foundation) Fixed in 3.3.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Apache Airflow 3.3.2

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2026-56785 Apache Airflow: Session cookie silently overrides explicit Authorization bearer header, enabling session fixationPriority LOW 21
    • TI-2026-52806 Apache Airflow: Assets events API returns asset events for every Dag with no per-Dag authorization filterPriority LOW 21
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-86473
  2. 2026-10-03 Alias added: GHSA-9cmm-29p3-73gr
  3. 2026-11-03 Fix available: [email protected] · CNA

References

Patch 1

Advisory 2

  • TI-2020-10905 Missing authentication in Apache Airflow KEVCVSS 3.1CRITICAL 9.8
  • TI-2020-09638 OS command injection in Apache Airflow KEVCVSS 3.1HIGH 8.8
  • TI-2022-19017 Apache Airflow <2.4.0 has an RCE in a bash example CVSS 3.1HIGH 8.8
  • TI-2021-16140 Apache Airflow: Variable Import endpoint missed authentication check CVSS 3.1CRITICAL 9.8
  • TI-2022-08169 Apache Airflow: RCE in example DAGs CVSS 3.1HIGH 8.8
  • TI-2024-26776 Apache Airflow: DAG Author Code Execution possibility in airflow-scheduler CVSS 3.1HIGH 8.8
See all 157 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences