Improper access control in Apache Airflow - CVE-2026-46764
Published: June 4, 2026
Vulnerability identifier: #VU133383
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-46764
CWE-ID: CWE-284
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apache Foundation
Affected software:
Apache Airflow
Apache Airflow
Detailed vulnerability description
The vulnerability allows a remote user to disclose audit-log entries for other Dag scopes.
The vulnerability exists due to improper access control in the Event Log detail endpoint `GET /api/v2/eventLogs/{event_log_id}` when handling requests for event log records by numeric ID. A remote user can guess or enumerate event log IDs to disclose audit-log entries for other Dag scopes.
Affects deployments that rely on per-Dag audit-log scoping.
How to mitigate CVE-2026-46764
Install security update from vendor's website.