steveukx simple-git up to 4.0.0 blockUnsafeOperationsPlugin os command injection

Summaryinfo

A vulnerability classified as critical has been found in steveukx simple-git up to 4.0.0. This affects an unknown function of the component blockUnsafeOperationsPlugin. The manipulation leads to os command injection. This vulnerability is listed as CVE-2026-102828. The attack may be initiated remotely. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in steveukx simple-git up to 4.0.0 and classified as critical. This issue affects some unknown processing of the component blockUnsafeOperationsPlugin. The manipulation with an unknown input leads to a os command injection vulnerability. Using CWE to declare the problem leads to CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-102828 since 09/29/2026. The exploitation is known to be easy. The attack may be initiated remotely. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 4.0.1 eliminates this vulnerability.

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Productinfo

Type

• Versioning Software

Vendor

• steveukx

Name

• simple-git

Version

• 4.0

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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