EXPOSURES › CVE-2026-102828
CVE-2026-102828
CRITICALsimple-git allowed attacker-controlled git trailer commands to execute arbitrary shell code with the Node.js process identity and permissions.
The simple-git library failed to classify attacker-controlled git trailer commands as unsafe, enabling arbitrary command execution via the git interpret-trailers feature. This is a critical RCE vulnerability that allows attackers to run system commands with the application's OS identity and permissions, directly impacting DIB compliance by violating NIST 800-171 requirements for preventing unauthorized access and ensuring system integrity. Organizations must immediately patch to version 4.0.1 and audit their git command handling.
Shame score — A critical RCE vulnerability in a widely used Node.js library that allowed arbitrary command execution with the application's OS identity and permissions, representing a severe avoidable failure in secure defaults and input validation.
▸ RECOMMENDED ACTION Remote code execution — patch the affected products on priority.
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.