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CVE-2026-42358
Published:June 01, 2026
Updated:June 07, 2026
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.
Affected Packages
apache-airflow (CONDA):
Affected version(s) >=2.0.1 <3.2.2
Fix Suggestion:
Update to version 3.2.2
https://github.com/apache/airflow.git (GITHUB):
Affected version(s) >=airbnb_prod.1.6.1.0 <3.2.2
Fix Suggestion:
Update to version 3.2.2
apache-airflow (PYTHON):
Affected version(s) >=1.8.1 <3.2.2
Fix Suggestion:
Update to version 3.2.2
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CVSS v4
Base Score:
7.1
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
6.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Weakness Type (CWE)
Exposure of Sensitive Information to an Unauthorized Actor
EPSS
Base Score:
0.04