Vulnerability GHSA-5247-m8w9-2v4m

Medium Risk
MEDIUM RISK
CVSS Score: 6.5
Score Range: 4.0–6.9
Medium severity vulnerabilities (CVSS 4.0–6.9). Important issues that meaningfully reduce security confidence.
1 month ago
August 12, 2026 at 06:31 PM UTC
Apache Airflow missing team context permits cross-team Dag actions and XCom reads
1.8.1 - 3.3.1rc2
1.8.1 - 3.3.1rc2

Summary

Apache Airflow missing team context permits cross-team Dag actions and XCom reads

Details

Apache Airflow's asset materialization endpoint (POST /api/v2/assets/{asset_id}/materialize) and the XCom result check on wait_dag_run_until_finished authorized the target Dag without its team, unlike every other authorization site. A team-aware auth manager distinguishes a team-scoped Dag from a global one by that field -- the Keycloak auth manager, for example, checks the DAG resource instead of DAG:<team> -- so the team-scoped permission that should gate the request was never consulted. In a deployment running multi-team mode with a team-aware auth manager, an authenticated user in one team could trigger Dag runs belonging to another team, supplying their own dag_run_id and conf, and could read another team's XCom values. Deployments using the FAB auth manager are unaffected, as it has no multi-team support. Users are advised to upgrade to apache-airflow 3.3.1 or later, which resolves the Dag's team at both sites.

Impacted packages

Timeline

Published
1 month ago
August 12, 2026 at 06:31 PM UTC
Fixed (3.3.1)
1 month ago
August 12, 2026 at 08:10 AM UTC
Last Modified
9 hours ago
October 02, 2026 at 11:40 PM UTC