[ CVE-2026-114094 · Published 21 Oct 2026 ]

Vulnerability in jelmer dulwich

CVSS 8.8 EPSS <1%No fix listed yet

[ Description ]Official 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.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.