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.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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. (CVE-2026-54183)

ID	Name	Product	Family	Type	Severity
472793	Echo: apache-airflow: security update to 3.3.1	Tenable Cloud Security	Echo Local Security Checks	Local	medium
472793	Echo: apache-airflow: security update to 3.3.1	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
472201	SCA: security update for apache-airflow (GHSA-g4qj-5vxv-wggf)	Tenable Cloud Security	SCA Checks	Local	medium
472201	SCA: security update for apache-airflow (GHSA-g4qj-5vxv-wggf)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium

Detections

Analytics

CVE-2026-54183

medium

Tenable Plugins

medium

medium

medium

medium