PT-2026-47720 · Apache Airflow · Apache-Airflow-Providers-Smtp

Jarek Potiuk + 1 · CVE-2026-49818 · Published 2026-06-09 · Updated 2026-06-12

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions apache-airflow-providers-samba versions prior to 4.12.6

Description The GCSToSambaOperator in the Apache Airflow Samba provider fails to perform a containment check when joining GCS object names to the SMB destination path. This allows an attacker who can write objects into the source GCS bucket to use ../ segments in object names to resolve a write path outside the configured destination path, enabling the writing of files to arbitrary locations on the Samba target.

Recommendations Upgrade apache-airflow-providers-samba to version 4.12.6 or later.

Exploit

Fix

Path traversal

Weakness Enumeration

CWE-22

Related Identifiers

CVE-2026-49818

PYSEC-2026-208

Affected Products

Apache-Airflow-Providers-Smtp

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49818.json · Exploit
• https://github.com/apache/airflow/pull/67857 · Patch
• https://lists.apache.org/thread/3vs0m3p51psgf54tts18d6336g24x3sf · Vendor Advisory
• https://osv.dev/vulnerability/PYSEC-2026-208 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-49818 · Security Note
• https://osv.dev/vulnerability/CVE-2026-49818 · Vendor Advisory
• https://pypi.python.org · Note
• https://twitter.com/oss_security/status/2065226731754020872 · Twitter Post
• http://openwall.com/lists/oss-security/2026/06/09/8 · Note
• https://t.me/cveNotify/167216 · Telegram Post
• https://twitter.com/CVEnew/status/2064342544310317547 · Twitter Post
• https://twitter.com/infoflowcloud/status/2064343408877920435 · Twitter Post
• https://t.me/CVEtracker/56277 · Telegram Post
• https://twitter.com/VulmonFeeds/status/2064295270326706435 · Twitter Post