Arbitrary Command Injection Affecting willitmerge package, versions *
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Start learning- Snyk IDSNYK-JS-WILLITMERGE-14135971
- published27 Nov 2025
- disclosed26 Nov 2025
- creditLiran Tal
Introduced: 26 Nov 2025
New CVE NOT AVAILABLE CWE-77 (opens in a new tab)How to fix?
There is no fixed version for willitmerge.
Overview
willitmerge is an A command line tool to check if pull requests are mergeable.
Affected versions of this package are vulnerable to Arbitrary Command Injection due to the use of insecure child process execution API (exec). An attacker can execute arbitrary system commands by supplying crafted input to command-line flags or by controlling repository data that is concatenated into shell commands.
PoC
Run it with the following command:
willitmerge --verbose --remote "https://github.com/lirantal/npq.git; touch /tmp/hel"