PT-2025-40040 · Npm · Check-Branches

Published 2025-09-30 · Updated 2025-09-30

OSV

CVSS v4.0

9.3

Critical

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

All versions of the package check-branches are vulnerable to Command Injection.

check-branches is a command-line tool that is interacted with locally, or via CI, to confirm no conflicts exist in git branches.

However, the library follows these conventions which can be abused:

1. It trusts branch names as they are (plain text)
2. It spawns git commands by concatenating user input

Since a branch name is potentially a user input - as users can create branches remotely via pull requests, or simply due to privileged access to a repository - it can effectively be abused to run any command.

Fix

Command Injection

OS Command Injection

Weakness Enumeration

CWE-77

CWE-78

Related Identifiers

GHSA-9C4G-FP4R-PRRV

Affected Products

Check-Branches

References · 5

• https://osv.dev/vulnerability/GHSA-9c4g-fp4r-prrv · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-11148 · Security Note
• https://github.com/puntorigen/check-branches · Note
• https://gist.github.com/lirantal/054b4ad039a86c418f2c84e3e884d6ec · Note
• https://security.snyk.io/vuln/SNYK-JS-CHECKBRANCHES-2766494 · Note