What is GHSA-pxf3-54vf-v638?

GHSA-pxf3-54vf-v638 is a security advisory published by GitHub Security Advisories with High severity. Dulwich before 1.2.9 fails to validate DOS drive letter prefixes in Git tree path elements on...

Which CVE IDs does GHSA-pxf3-54vf-v638 cover?

GHSA-pxf3-54vf-v638 covers the following CVE IDs: CVE-2026-114094. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-pxf3-54vf-v638?

GHSA-pxf3-54vf-v638 has a CVSS v3 base score of 8.8, published by GitHub Security Advisories.

GHSA-pxf3-54vf-v638HighCVSS 8.8

Dulwich before 1.2.9 fails to validate DOS drive letter prefixes in Git tree path elements on...

Vendor

GitHub Security Advisories

Published

October 21, 2026

Last Modified

October 21, 2026

🔗 CVE IDs covered (1)

CVE-2026-114094 →

📋 Description

Dulwich before 1.2.9 fails to validate DOS drive letter prefixes in Git tree path elements on Windows, allowing arbitrary file write. Attackers can craft a malicious repository with a tree entry named 'C:' that bypasses NTFS validation and writes files outside the worktree to achieve remote code execution.

🔗 References (4)

https://github.com/jelmer/dulwich/security/advisories/GHSA-8mcx-5rqc-vhmf
https://nvd.nist.gov/vuln/detail/CVE-2026-114094
https://www.vulncheck.com/advisories/dulwich-before-1.2.9-arbitrary-file-write-via-dos-drive-letter-paths
https://github.com/advisories/GHSA-pxf3-54vf-v638