CVE-2026-49818

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`.

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Produits concernés

• Apache Software Foundation Apache Airflow Samba provider
• Apache apache-airflow-providers-samba

Scores CVSS

Faiblesses (CWE)

• CWE-22

Références

• https://github.com/apache/airflow/pull/67857 Issue TrackingPatch
• https://lists.apache.org/thread/3vs0m3p51psgf54tts18d6336g24x3sf Mailing ListVendor Advisory
• http://www.openwall.com/lists/oss-security/2026/06/09/8 Mailing ListThird Party Advisory

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories