apache/airflow · Security
Apache Airflow has a Path Traversal issue
- GHSA ID
- GHSA-f6vj-48fm-hmvx
- CVE ID
- CVE-2026-49818
- Severity
- medium
- Published
- Updated
- CVSS
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
- CVSS v3
- 6.5 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Description
The Apache Airflow Samba provider's GCSToSambaOperator joined GCS object names to the SMB destination path without a containment check, so an object named with ../ segments resolved a write path outside the configured destination_path. An attacker able to write objects into the source GCS bucket — typically an external data producer distinct from the trusted DAG author — could write files to arbitrary locations on the Samba target when the operator ran. Upgrade apache-airflow-providers-samba to 4.12.6 or later, which validates the resolved destination stays within destination_path.
CWEs
- CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
References
- https://nvd.nist.gov/vuln/detail/CVE-2026-49818 ↗
- https://github.com/apache/airflow/pull/67857 ↗
- https://lists.apache.org/thread/3vs0m3p51psgf54tts18d6336g24x3sf ↗
- http://www.openwall.com/lists/oss-security/2026/06/09/8 ↗
- https://github.com/apache/airflow/commit/bc1df029af15cb1d35d5ca0d33bf9235500137cc ↗
- https://github.com/pypa/advisory-database/tree/main/vulns/apache-airflow-providers-samba/PYSEC-2026-208.yaml ↗
- https://github.com/advisories/GHSA-f6vj-48fm-hmvx ↗