---
id: CVE-2026-102828
title: >-
  simple-git, an interface for running git commands in any node.js application,
  enables applications to execute Git operations from JavaScript
summary: >-
  simple-git, an interface for running git commands in any node.js application,
  enables applications to execute Git operations from JavaScript. From 3.15.0
  until 4.0.1, the default blockUnsafeOperationsPlugin does not classify
  trailer.<tok…
severity: critical
cvss: 9.2
cvssVector: 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'
cwe:
  - CWE-78
  - CWE-184
vendor: steveukx
product: git-js
affected:
  - 'git-js >= 3.15.0, < 4.0.1'
published: '2026-09-29'
updated: '2026-09-29'
sourceUpdated: '2026-09-29T19:17:25.207'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-102828'
references:
  - url: >-
      https://github.com/steveukx/git-js/commit/d762810c13b331ff1e5eb24c0b434646d2a8d1b3
    label: security-advisories@github.com
  - url: 'https://github.com/steveukx/git-js/pull/1198'
    label: security-advisories@github.com
  - url: 'https://github.com/steveukx/git-js/releases/tag/simple-git@4.0.1'
    label: security-advisories@github.com
  - url: 'https://github.com/steveukx/git-js/security/advisories/GHSA-x6jw-m9v5-85vh'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
cvssSource: cna
ingestedAt: '2026-09-29T19:44:04.149Z'
---

## Overview

simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. From 3.15.0 until 4.0.1, the default blockUnsafeOperationsPlugin does not classify trailer.<token>.cmd as unsafe configuration. An application that passes attacker-controlled values through SimpleGitOptions.config or inline -c arguments can therefore allow Git to invoke an attacker-selected shell command when git interpret-trailers processes the configured trailer. The command executes with the operating-system identity and permissions of the Node.js process. This issue is fixed in 4.0.1.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.