Incorrect authorization in Apache Airflow - CVE-2026-49296
Published: August 24, 2026
Vulnerability identifier: #VU144867
CSH Severity: Low
CVSS v4: 5.3 [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]
CVE-ID: CVE-2026-49296
CWE-ID: CWE-863
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to disclose sensitive information.
The vulnerability exists due to improper access control in the GET /api/v2/dagSources/{dag_id} endpoint and equivalent dag-source view when returning source files for dag source requests. A remote user can request the source for an authorized dag id to disclose sensitive information.
Only deployments that co-locate multiple dags in a single source file and rely on per-dag access control for source visibility are affected; single-dag-per-file deployments are not.
Affected software
Apache Airflow
How to mitigate CVE-2026-49296
Install security update from vendor's website.
Apache Airflow - update to 3.3.0