Command Injection Affecting simple-git package, versions >=3.15.0 <4.0.0
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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Test your applications- Snyk IDSNYK-JS-SIMPLEGIT-20335531
- published30 Sept 2026
- disclosed29 Sept 2026
- creditsec-reex
Introduced: 29 Sep 2026
NewCVE-2026-102828 (opens in a new tab)How to fix?
Upgrade simple-git to version 4.0.0 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 Command Injection via the rebase command handler and the trailer.<token>.cmd/trailer.<token>.command configuration keys, which allow an attacker to inject the -x/--exec flag or a shell-executable trailer command into a spawned Git process. An attacker who can influence the arguments or configuration passed to simple-git can achieve arbitrary command execution on the host system.