GitHub Advisoryadvisory · PyPI

GHSA-mxq5-f9c5-w4p5 Apache Airflow Vulnerable to Authorization Bypass Through User-Controlled Key

HIGH Published 2026-06-01 Modified 2026-07-09 Official page ↗
Aliases
CVE-2026-41084
Ecosystem
PyPI
Packages
apache-airflow
Severity
High
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Weaknesses
CWE-639
Reviewed
2026-07-09

Affected packages

• PyPI apache-airflow: >= 3.2.0, < 3.2.2 → fixed in 3.2.2

Description

A bug in Apache Airflow's bulk Task Instances API (`PATCH/DELETE /api/v2/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances`) evaluated authorization against the `dag_id` resolved from the URL path while operating on the `dag_id` / `dag_run_id` extracted from request-body entity fields. An authenticated UI/API user with edit permission on one Dag could mutate Task Instance state in any other Dag by keeping the authorized Dag's ID in the URL path and naming the target Dag's IDs in the request body entities. Affects deployments that rely on per-Dag edit-scope to keep Task Instance state isolated between teams. Users are advised to upgrade to `apache-airflow` 3.2.2 or later.

Related

Alias · CVE (1)

  • CVE-2026-41084 A bug in Apache Airflow's bulk Task Instances API (`PATCH/DELETE /api/v2/dags/{dag_id}/dagRuns/{dag_run_id}/taskInstances`) evaluated… vulnerability

Weakness · CWE (1)

  • CWE-639 Authorization Bypass Through User-Controlled Key weakness

References