---
id: CVE-2026-110634
title: >-
  git-diff before 2.0.7 contains an OS command injection vulnerability that
  allows attackers to execute shell commands by supplying crafted strings to the
  gitDiff API
summary: >-
  git-diff before 2.0.7 contains an OS command injection vulnerability that
  allows attackers to execute shell commands by supplying crafted strings to the
  gitDiff API. Attackers who control a diffed document string can embed $(cmd)
  or back…
severity: critical
cvss: 9.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'
cwe:
  - CWE-78
vendor: danday74
product: git-diff
affected:
  - git-diff < 2.0.7
patched:
  - git-diff 2.0.7
published: '2026-10-14'
updated: '2026-10-16'
sourceUpdated: '2026-10-16T19:18:44.867'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110634'
references:
  - url: 'https://github.com/danday74/git-diff'
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/danday74/git-diff/blob/a85a649badc4c6bba991e87e82382b7d3cdd6634/js/gitDiffReal/generateDiff/index.js#L26-L30
    label: disclosure@vulncheck.com
  - url: >-
      https://github.com/danday74/git-diff/commit/bfd727b6cf1daa671c3528d1d681f55b70e8fb19
    label: disclosure@vulncheck.com
  - url: 'https://github.com/danday74/git-diff/pull/16'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/git-diff-before-2.0.7-os-command-injection-via-gitdiff-input-strings
    label: disclosure@vulncheck.com
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2026-110634'
  - url: 'https://github.com/advisories/GHSA-6wfj-92cw-88vg'
tags:
  - nvd
  - cve.org
  - ghsa
  - npm
epss: 0.02348
epssPercentile: 0.83723
aliases:
  - GHSA-6wfj-92cw-88vg
ecosystem: npm
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: total
  timestamp: '2026-10-14T17:33:42.528799Z'
ingestedAt: '2026-10-14T15:36:14.013Z'
---

## Overview

git-diff before 2.0.7 contains an OS command injection vulnerability that allows attackers to execute shell commands by supplying crafted strings to the gitDiff API. Attackers who control a diffed document string can embed $(cmd) or backtick substitutions that shelljs.exec evaluates, running commands with Node.js process privileges.

## Remediation

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

## Package advisory (CVE-2026-110634)

Affected packages:

- `git-diff < 2.0.7`

Patched in:

- `git-diff 2.0.7`

Source: https://github.com/advisories/GHSA-6wfj-92cw-88vg