puntorigen/check-branches · Security
check-branches is vulnerable to command Injection
- GHSA ID
- GHSA-9c4g-fp4r-prrv
- CVE ID
- CVE-2025-11148
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v4
- 9.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Description
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:
- It trusts branch names as they are (plain text)
- 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.
CWEs
- CWE-77 · Improper Neutralization of Special Elements used in a Command ('Command Injection')
- CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')