Dulwich Vulnerable to Command Injection via Merge Driver Path

SummaryDulwich'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...

SUSE 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 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 the ...

Command Injection

check-branches is vulnerable to command injection.The vulnerability is due to the tool trusting branch names as plain text and concatenating them into git commands, which allows an attacker to craft malicious branch names to execute arbitrary system commands...