CVE-2026-114094

EUVD-2026-106897
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.
Path Traversal
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
8.8 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 51.36%
Common Weakness Enumeration
References
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