CVE-2026-42563

A flaw was found in Dulwich, a pure-Python implementation of Git file formats and protocols. An attacker can exploit this vulnerability by crafting malicious file paths within an untrusted Git branch. When a victim merges this branch, the ProcessMergeDriver component incorrectly substitutes the...

CVE-2026-42563

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 th...

CVE-2026-42563: Improper Neutralization of Special Elements used in an OS Command

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 ...

Dulwich operating system command injection vulnerability

Dulwich is a Python-based Git repository management interface developed by Jelmer Vernooij. Versions of Dulwich from 0.24.0 to 1.2.5 had a vulnerability related to operating system command injection. This vulnerability stemmed from ProcessMergeDriver’s ability to replace file paths into the merge...