CVE-2026-50203

Name: CVE-2026-50203
Creator: NVD / NIST
Published: 2026-06-17T13:20:47.213+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.1/10EPSS 0.63%

Last modified Jun 17, 2026

CVE-2026-50203 is a critical-severity vulnerability rated 9.1/10 on the CVSS scale. 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. EPSS estimates a 0.63% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.1/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

EPSS Probability

0.63%

45.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-22

Affected Software

Vendor	Product	Versions
Apache	Apache-Airflow-Providers-Sftp	< 5.8.1

References

https://github.com/apache/airflow/pull/67985Issue Tracking, Patch
https://lists.apache.org/thread/7f4b284oh44c1n95oq8mh1qc7y1lr9dxMailing List, Vendor Advisory
http://www.openwall.com/lists/oss-security/2026/06/16/3Mailing List, Third Party Advisory

Timeline

Published: Jun 17, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-50203?

How severe is CVE-2026-50203?

CVE-2026-50203 has a CVSS score of 9.1/10 (CRITICAL severity). The EPSS model estimates a 0.63% probability of exploitation in the next 30 days.

How do I fix CVE-2026-50203?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-50203?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST