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CVE-2026-114094GHSA-8MCX-5RQC-VHMF

Dulwich before 1.2.9 Arbitrary File Write via DOS drive letter paths

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 1.2.9
None on Exploit-DB, Metasploit or GitHub
  • Exploitation: poc
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. First seen by cve.now
  3. CISA SSVC assessment

    Exploitation: poc · Automatable: no · Technical impact: total

  4. Record last updated

Affected versions

  • jelmer dulwich

    fixed in 1.2.9

  • dulwichPyPI

    fixed in 1.2.9

References 2

GitHub · jelmer/dulwich

vulncheck.com