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.
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Tue, 29 Sep 2026 18:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | 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. | |
| Title | simple-git unsafe-operation guard does not block trailer command configuration | |
| Weaknesses | CWE-184 CWE-78 |
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cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-09-29T18:43:19.086Z
Reserved: 2026-09-29T17:25:25.265Z
Link: CVE-2026-102828
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Status : Received
Published: 2026-09-29T19:17:25.207
Modified: 2026-09-29T19:17:25.207
Link: CVE-2026-102828
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