All vulnerabilities
CVE-2026-54183BIT-airflow-2026-54183GHSA-g4qj-5vxv-wggfPYSEC-2026-3705

apache-airflow: Apache Airflow Variables UI fails to mask sensitive values in deeply nested iterables

Apache Software Foundation apache-airflowpipLibraries & packages
Open in ThreatlineRecord JSON
CVSS
4.3Medium
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.42%Chance of exploitation activity in the next 30 days, higher than 35% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in3.3.1Fixed versionGitHub
Published12 Aug 2026Updated 2 Oct 2026CVE List

What fixes it

  • 3.3.1apache-airflow, pipGitHub
  • 3.3.1Apache AirflowCVE List
  • 3.3.1apache-airflow, PyPIOSVpip install "apache-airflow>=3.3.1"

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Apache Airflow's secrets masker hides values stored under sensitive key names when they are displayed in the UI. The masker's recursion-depth limit did not descend into values nested inside a list, tuple, or set beyond that limit, so an Airflow Variable holding such a deeply-nested value was shown unmasked in the Variables UI. The exposure is limited to the UI: any authenticated user who can see the Variable in the UI can already read its full value through the Variables REST API, so this does not disclose data the user could not otherwise obtain — the masking is a shoulder-surfing defense for the UI, not an access-control boundary.

This is an incomplete-fix follow-up to CVE-2026-42358, whose fix made only the dictionary walk unbounded; lists, tuples, and sets beyond the depth limit remained unmasked in the UI. Deployments that applied the CVE-2026-42358 fix should also upgrade to address this residual case. Upgrade to apache-airflow 3.3.1 or later.

Text from GitHub Advisory Database

Affected versions 53

  • apache-airflow, pip< 3.3.1GitHub
  • Apache Airflowaffected: all versions before 3.3.1CVE List
  • apache-airflow, PyPIfrom first release, fixed in 3.3.1OSV
  • apache-airflow, PyPI1.10.0OSV
  • apache-airflow, PyPI1.10.1OSV
  • apache-airflow, PyPI1.10.10OSV
  • apache-airflow, PyPI1.10.10rc1OSV
  • apache-airflow, PyPI1.10.10rc2OSV
  • apache-airflow, PyPI1.10.10rc3OSV
  • apache-airflow, PyPI1.10.10rc4OSV
  • apache-airflow, PyPI1.10.10rc5OSV
  • apache-airflow, PyPI1.10.11OSV
  • apache-airflow, PyPI1.10.11rc1OSV
  • apache-airflow, PyPI1.10.11rc2OSV
  • apache-airflow, PyPI1.10.12OSV
  • apache-airflow, PyPI1.10.12rc1OSV
  • apache-airflow, PyPI1.10.12rc2OSV
  • apache-airflow, PyPI1.10.12rc3OSV
  • apache-airflow, PyPI1.10.12rc4OSV
  • apache-airflow, PyPI1.10.13OSV
  • apache-airflow, PyPI1.10.13rc1OSV
  • apache-airflow, PyPI1.10.14OSV
  • apache-airflow, PyPI1.10.14rc1OSV
  • apache-airflow, PyPI1.10.14rc2OSV
  • apache-airflow, PyPI1.10.14rc3OSV
  • apache-airflow, PyPI1.10.14rc4OSV
  • apache-airflow, PyPI1.10.15OSV
  • apache-airflow, PyPI1.10.15rc1OSV
  • apache-airflow, PyPI1.10.1b1OSV
  • apache-airflow, PyPI1.10.1rc2OSV
  • apache-airflow, PyPI1.10.2OSV
  • apache-airflow, PyPI1.10.2b2OSV
  • apache-airflow, PyPI1.10.2rc1OSV
  • apache-airflow, PyPI1.10.2rc2OSV
  • apache-airflow, PyPI1.10.2rc3OSV
  • apache-airflow, PyPI1.10.3OSV
  • apache-airflow, PyPI1.10.3b1OSV
  • apache-airflow, PyPI1.10.3b2OSV
  • apache-airflow, PyPI1.10.3rc1OSV
  • apache-airflow, PyPI1.10.3rc2OSV
  • apache-airflow, PyPI1.10.4OSV
  • apache-airflow, PyPI1.10.4b2OSV
  • apache-airflow, PyPI1.10.4rc1OSV
  • apache-airflow, PyPI1.10.4rc2OSV
  • apache-airflow, PyPI1.10.4rc3OSV
  • apache-airflow, PyPI1.10.4rc4OSV
  • apache-airflow, PyPI1.10.4rc5OSV
  • apache-airflow, PyPI1.10.5OSV
  • apache-airflow, PyPI1.10.5rc1OSV
  • apache-airflow, PyPI1.10.6OSV
  • apache-airflow, PyPI1.10.6rc1OSV
  • apache-airflow, PyPI1.10.6rc2OSV
  • apache-airflow, PyPI1.10.7OSV

References 9