CVE-2026-114094

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.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/jelmer/dulwich/security/advisories/GHSA-8mcx-5rqc-vhmf
https://www.vulncheck.com/advisories/dulwich-before-1.2.9-arbitrary-file-write-via-dos-drive-letter-paths
https://github.com/jelmer/dulwich/security/advisories/GHSA-8mcx-5rqc-vhmf

Configurations

No configuration.

History

28 Oct 2026, 16:17

Type	Values Removed	Values Added
References	~~() https://github.com/jelmer/dulwich/security/advisories/GHSA-8mcx-5rqc-vhmf -~~	() https://github.com/jelmer/dulwich/security/advisories/GHSA-8mcx-5rqc-vhmf -

21 Oct 2026, 01:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-21 01:17

Updated : 2026-10-28 16:17

NVD link : CVE-2026-114094

Mitre link : CVE-2026-114094

CVE.ORG link : CVE-2026-114094

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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