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TI-2023-21115 Aliases CVE-2023-40273GHSA-pm87-24wq-r8w9

Session fixation in Apache Airflow web interface

Priority MEDIUM 41CWE-384Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

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

Summary

The session fixation vulnerability allowed the authenticated user to continue accessing Airflow webserver even after the password of the user has been reset by the admin - up until the expiry of the session of the user. Other than manually cleaning the session database (for database session backend), or changing the secure_key and restarting the webserver, there were no mechanisms to force-logout the user (and all other users with that). With this fix implemented, when using the database session backend, the existing sessions of the user are invalidated when the password of the user is reset. When using the securecookie session backend, the sessions are NOT invalidated and still require changing the secure key and restarting the webserver (and logging out all other users), but the user resetting the password is informed about it with a flash message warning displayed in the UI. Documentation is also updated explaining this behaviour. Users of Apache Airflow are advised to upgrade to version 2.7.0 or newer to mitigate the risk associated with this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01845 79th percentileScored 2026-11-07
Fix Fixed Apache Airflow (Apache Software Foundation): 2.7.0apache-airflow (PyPI): 2.7.0rc2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
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 Airflowbefore 2.7.02.7.0Patch availableCNA
—apache-airflow (PyPI)before 2.7.0rc22.7.0rc2Patch availableGHSA-pm87-24wq-r8w9
  • Apache Airflow VendorApache Affected before 2.7.0 Fixed in 2.7.0 Patch available CNA
  • apache-airflow (PyPI) Vendor— Affected before 2.7.0rc2 Fixed in 2.7.0rc2 Patch available GHSA-pm87-24wq-r8w9

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*up to 2.7.0VulnerableApache
  • cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:* Versions up to 2.7.0 Vulnerable ·Apache

Remediation

  • Fix · CNA Apache Airflow (Apache Software Foundation) Fixed in 2.7.0
  • Fix · GHSA-pm87-24wq-r8w9 apache-airflow (PyPI) Fixed in 2.7.0rc2 Advisory →

Fixed in the same release

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

  • Release ·

    Apache Airflow 2.7.0

    3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW

    Other records, highest priority first

    • TI-2023-19005 Apache Airflow: Exposure of sensitive connection information, DOS and SSRF on "test connection" featurePriority LOW 39
    • TI-2023-20577 Improper certificate validation in Apache Airflow SMTP ProviderPriority LOW 28
    Show all 3 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-40273
  2. 2026-10-03 Alias added: GHSA-pm87-24wq-r8w9

References

Patch 1

Advisory 3

Other 4

  • 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