GitHub Advisoryadvisory · PyPI

GHSA-33g2-gx67-c2h3 Apache Airflow Vulnerable to Exposure of Sensitive Information to an Unauthorized Actor

MEDIUM Published 2026-06-01 Modified 2026-07-09 Official page ↗
Aliases
CVE-2026-42358
Ecosystem
PyPI
Packages
apache-airflow
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses
CWE-200
Reviewed
2026-07-09

Affected packages

• PyPI apache-airflow: < 3.2.2 → fixed in 3.2.2

Description

A bug in Apache Airflow's Variable response masker caused nested-key redaction (triggered by secret-suffixed key names like `password`, `token`, `secret`, `api_key`) to be bypassed when the JSON value's nesting depth exceeded the shared secrets masker's recursion limit: the masker returned the original nested item before checking the sensitive key name. An authenticated UI/API user with Variable read permission could harvest plaintext secret values stored under sensitive keys nested deep enough to exceed the masker's depth cap. Affects deployments that store sensitive values inside deeply-nested JSON Variables. This is a residual gap in the fix for CVE-2026-32690 (which covered shallower nesting via `max_depth=1`); the depth-limit boundary itself was not raised, so the same key-name bypass pattern reappears beyond the recursion cap. Users who already upgraded for CVE-2026-32690 should additionally upgrade to `apache-airflow` 3.2.2 or later to cover the deep-nesting path.

Related

Alias · CVE (1)

  • CVE-2026-42358 A bug in Apache Airflow's Variable response masker caused nested-key redaction (triggered by secret-suffixed key names like `password`,… vulnerability

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References