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TI-2026-56785 Aliases CVE-2026-82355GHSA-9x6g-jfj6-r3jg

Apache Airflow: Session cookie silently overrides explicit Authorization bearer header, enabling session fixation

Priority LOW 21CWE-384Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-384.

Summary

When a request to the Airflow core API carries both a session cookie and an explicit `Authorization: Bearer` token, Airflow resolves the caller from the cookie and ignores the bearer token, inverting the intended precedence of bearer over cookie. The request then executes -- and is recorded in the audit log -- as the cookie's principal rather than the identity the client explicitly presented. Only Apache Airflow 3.3.0 and 3.3.1 are affected. Earlier releases do not contain the code path that caches the cookie-derived user, and are not vulnerable. Exploiting this requires an attacker to first place a valid session cookie of their own into the victim's browser or client: for example by cookie tossing from a sibling subdomain, through cross-site scripting in a separate application sharing a parent domain, or via a shared workstation. Deployments that host the Airflow UI on a domain shared with other applications are therefore the most exposed; a deployment on a dedicated domain with no co-hosted applications is not reachable this way. The consequence is principal confusion and misattributed audit records rather than a direct privilege escalation. Users of 3.3.0 or 3.3.1 should upgrade to Apache Airflow 3.3.2 or later, which resolves the caller from the explicitly supplied credential whenever one is present.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00735 54th 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
No
Technical impact
Partial

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 Airflow3.3.0 to before 3.3.23.3.2Patch availableCNA
  • Apache Airflow VendorApache Affected 3.3.0 to before 3.3.2 Fixed in 3.3.2 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:apache:airflow:3.3.0:*:*:*:*:*:*:*3.3.0VulnerableApache
cpe:2.3:a:apache:airflow:3.3.1:*:*:*:*:*:*:*3.3.1VulnerableApache
  • cpe:2.3:a:apache:airflow:3.3.0:*:*:*:*:*:*:* Versions 3.3.0 Vulnerable ·Apache
  • cpe:2.3:a:apache:airflow:3.3.1:*:*:*:*:*:*:* Versions 3.3.1 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-2026-59167 Apache Airflow: Logout ignores a presented Authorization bearer token, leaving it revocable only by expiryPriority MEDIUM 49
    • 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-2026-82355
  2. 2026-10-03 Alias added: GHSA-9x6g-jfj6-r3jg
  3. 2026-11-03 Fix available: [email protected] · CNA

References

Patch 2

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