CVE-2026-114094
Published:October 21, 2026
Updated:October 21, 2026
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.
Affected Packages
dulwich (CONDA):
Affected version(s) >=1.0.0 <1.2.10Fix Suggestion:
Update to version 1.2.10https://github.com/jelmer/dulwich.git (GITHUB):
Affected version(s) >=dulwich-1.0.0 <dulwich-1.2.9Fix Suggestion:
Update to version dulwich-1.2.9dulwich (PYTHON):
Affected version(s) >=1.0.0 <1.2.9Fix Suggestion:
Update to version 1.2.9Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')