🛡️ CVE-2026-49818 — apache-airflow-providers-samba

🟡 CVSS 6.5 — Medium ✅ No Known Exploit CWE-22 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Apache Airflow has a Path Traversal issue

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.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

Weakness class

CVE-2026-49818 is classified as CWE-22: Path Traversal. A file path built from user input is not confined to the intended directory, letting an attacker reach files elsewhere on the filesystem.

Affected software

CVE-2026-49818 is recorded against 2 packages.

  • apache-airflow-providers-samba (fixed in 4.12.6)
  • unknown

Timeline and source

Published on 9 June 2026 and last revised on 4 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
github.com (Web)
lists.apache.org (Web)
www.openwall.com (Web)

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CWE CWE-22
Public Exploit ✅ No
Source NVD
Published 2026-06-09
Updated 2026-08-12
Modified 2026-08-04

Affected Packages

Software From version Fixed in
apache-airflow-providers-samba 4.12.6
unknown

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