GitHub Advisoryadvisory · PyPI

GHSA-3322-mjxh-9mp5 Apache Airflow exposes unreadable DAG identifiers in the scheduling dependencies graph

MEDIUM Published 2026-07-07 Modified 2026-09-04 Official page ↗
Aliases
CVE-2026-48891
Ecosystem
PyPI
Packages
apache-airflow
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Weaknesses
CWE-200
Reviewed
2026-09-04

Affected packages

• PyPI apache-airflow: < 3.3.0 → fixed in 3.3.0

Description

A bug in Apache Airflow's `/ui/dependencies` scheduling graph endpoint applied the caller's readable-Dag filter to the top-level serialized Dag key but still emitted referenced Dag IDs through the `dep.source` and `dep.target` fields of trigger / sensor dependency entries. An authenticated UI user with read permission on some Dags could enumerate the identifiers of other Dags they were not authorized to read by inspecting the dependency graph for trigger / sensor references. Affects deployments that rely on per-Dag read scoping to keep Dag identifiers private across teams. This is a residual gap in the fix for CVE-2026-28563, which filtered the top-level Dag key but did not propagate the filter into the trigger / sensor dep-source / dep-target fields. Users who already upgraded for CVE-2026-28563 should additionally upgrade to `apache-airflow` 3.3.0 or later to cover the residual trigger / sensor dependency leak.

Related

Alias · CVE (1)

  • CVE-2026-48891 A bug in Apache Airflow's `/ui/dependencies` scheduling graph endpoint applied the caller's readable-Dag filter to the top-level serialized… vulnerability

Weakness · CWE (1)

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

References