Vulnerability · Published Oct 14, 2026 · Assigned by VulnCheck

CVE-2026-110634git-diff before 2.0.7 OS Command Injection via gitDiff Input Strings

Critical 9.8

In plain English

A critical-severity OS command injection in git-diff from danday74. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.3% (higher than 84% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)2.3%top 16.3% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	git-diff	2.0.7	GHSA-6wfj-92cw-88vg

Affected products (as reported)

Vendor	Product	Versions
danday74	git-diff	0 – before 2.0.7

Weakness: CWE-78 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/danday74/git-diff/pull/16 issue-tracking, patch
https://github.com/danday74/git-diff/commit/bfd727b6cf1daa671c3528d1d681f55b70e8fb19 patch
https://github.com/danday74/git-diff/blob/a85a649badc4c6bba991e87e82382b7d3cdd6634/js/gitDiffReal/generateDiff/index.js#L26-L30 technical-description
https://github.com/danday74/git-diff product
VulnCheck Advisory: git-diff before 2.0.7 OS Command Injection via gitDiff Input Strings third-party-advisory