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.
History

Thu, 08 Oct 2026 20:15:00 +0000

Type Values Removed Values Added
First Time appeared Simple-git Project
Simple-git Project simple-git
CPEs cpe:2.3:a:simple-git_project:simple-git:*:*:*:*:*:node.js:*:*
Vendors & Products Simple-git Project
Simple-git Project simple-git
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Tue, 06 Oct 2026 12:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important


Wed, 30 Sep 2026 21:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 29 Sep 2026 21:45:00 +0000

Type Values Removed Values Added
First Time appeared Steveukx
Steveukx git-js
Vendors & Products Steveukx
Steveukx git-js

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
References
Metrics cvssV4_0

{'score': 9.2, 'vector': 'CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-09-29T18:43:19.086Z

Updated: 2026-09-30T20:08:15.246Z

Reserved: 2026-09-29T17:25:25.265Z

Link: CVE-2026-102828

cve-icon Vulnrichment

Updated: 2026-09-30T20:08:11.704Z

cve-icon NVD

Status : Analyzed

Published: 2026-09-29T19:17:25.207

Modified: 2026-10-08T20:03:07.760

Link: CVE-2026-102828

cve-icon Redhat

Severity : Important

Publid Date: 2026-09-29T18:43:19Z

Links: CVE-2026-102828 - Bugzilla