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CVE

CVE-2026-50203

Apache Airflow SFTP provider: Path traversal in SFTPHook.retrieve_directory allows local file write outside the destination directory via malicious server-supplied directory-entry names
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CVE

CVE-2026-50203

Apache Airflow SFTP provider: Path traversal in SFTPHook.retrieve_directory allows local file write outside the destination directory via malicious server-supplied directory-entry names

A path traversal in the SFTP provider (SFTPHook.retrieve_directory / SFTPOperator(operation=get)) let a malicious or compromised remote SFTP server write files outside the configured local destination directory via crafted directory-entry names. No Airflow account is required — the attack surface is any deployment downloading directories from an untrusted SFTP server. Upgrade apache-airflow-providers-sftp to 5.8.1 or later.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
C
H
U
9.1
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Related Resources

No items found.

References

http://www.openwall.com/lists/oss-security/2026/06/16/3, https://pypi.python.org, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/50xxx/CVE-2026-50203.json, https://lists.apache.org/thread/7f4b284oh44c1n95oq8mh1qc7y1lr9dx, https://nvd.nist.gov/vuln/detail/CVE-2026-50203, https://github.com/apache/airflow/pull/67985

Severity

9.1

CVSS Score
0
10

Basic Information

Base CVSS
9.1
EPSS Probability
0.00626%
EPSS Percentile
0.48438%
Introduced Version
0
Fix Available
2bb862846358d1c5a59b354adb39bc68d5aeae5e,3.2.2-r7

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