CVE-2026-42563
Dulwich is a pure-Python implementation of the Git file formats and protocols
Published: 2026-06-10 · Last updated: 2026-06-10
Severity and scoring
- CWE
- CWE-78
Description
Dulwich is a pure-Python implementation of the Git file formats and protocols. Starting in version 0.24.0 and prior to version 1.2.5, Dulwich's `ProcessMergeDriver` substitutes the file path (from the git tree, controllable by an attacker via a malicious branch) into the merge driver command via the `%P` placeholder and executes it with `subprocess.run(..., shell=True)`. An attacker who can cause a victim to merge an untrusted branch can achieve arbitrary command execution by crafting malicious file paths. Version 1.2.5 fixes the issue.
Source: NVD
References
Related CVEs
Same CWE
- CVE-2026-49219 — ImageMagick is free and open-source software used for editing and manipulating digital images (5.5 MEDIUM)
- CVE-2026-0273 — A command injection vulnerability in Palo Alto Networks PAN-OS® software enables an authenticated administrator to bypass system restrict...
- CVE-2026-6893 — A flaw was found in dracut (8.8 HIGH)
- CVE-2026-46643 — Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page
- CVE-2026-9151 — An OS command injection vulnerability exists in the VPN module of TP-Link Archer AX12 v1, AX17 v1