CVE-2026-49818

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`.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/apache/airflow/pull/67857	Issue Tracking Patch
https://lists.apache.org/thread/3vs0m3p51psgf54tts18d6336g24x3sf	Mailing List Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/09/8	Mailing List Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:apache:apache-airflow-providers-samba:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-09 09:16

Updated : 2026-07-23 08:10

NVD link : CVE-2026-49818

Mitre link : CVE-2026-49818

CVE.ORG link : CVE-2026-49818

JSON object : View

Products Affected

apache

apache-airflow-providers-samba

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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