CVE-2026-75158 — Apache Airflow: Assets events API returns asset events for every Dag with no per-Dag authorization filter

Description (CNA)

Apache Airflow's `/assets/events` API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read. Any authenticated user holding asset-read access could therefore enumerate asset events — including the source Dag ID, task ID, run ID and event timestamps — for Dags they have no permission to see. Because the filter was also absent from the count query, `total_entries` and pagination disclosed the existence of hidden Dags even without inspecting individual rows. Deployments are affected whenever per-Dag access control is used to separate teams or tenants; no special configuration is required. Upgrade to apache-airflow 3.3.2 or later.

Affected (CNA)

Vendor / product	Versions
Apache Software Foundation / Apache Airflow	affected 0 before 3.3.2

CWE

CWE-200

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.

http://www.openwall.com/lists/oss-security/2026/09/21/3