Incorrect authorization in Apache Airflow - CVE-2026-68968
Published: August 24, 2026
Vulnerability identifier: #VU144879
CSH Severity: Low
CVSS v4: 7.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-68968
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to bypass authorization and modify backfills belonging to other dags.
The vulnerability exists due to improper access control in the Backfill API when handling a crafted backfill id path segment that is interpreted inconsistently during authorization and route processing. A remote user can send a specially crafted request to bypass authorization and modify backfills belonging to other dags.
No non-default configuration is required, and sequential backfill ids make target discovery trivial.
Affected software
Apache Airflow
How to mitigate CVE-2026-68968
Install security update from vendor's website.
Apache Airflow - update to 3.3.1