The Apache Airflow Samba provider's `GCSToSambaOperator` joined GCS object names to the SMB destination path without a c
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-sam
Affected packages
- apache-airflow-providers-samba— before 4.12.6
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- 0.69%
- EPSS percentile
- 49.4%
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs. This advisory is in the top 49%.
Sources
- http://www.openwall.com/lists/oss-security/2026/06/09/8
- https://lists.apache.org/thread/3vs0m3p51psgf54tts18d6336g24x3sf
- https://github.com/apache/airflow/pull/67857
- https://github.com/advisories/GHSA-f6vj-48fm-hmvx
Structured record: https://osv.dev/vulnerability/PYSEC-2026-208
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