steveukx git-js up to 2.0.0 argv-parser parseEnv VISUAL os command injection

Summaryinfo

A vulnerability was found in steveukx git-js up to 2.0.0. It has been rated as critical. Impacted is the function parseEnv of the component argv-parser. This manipulation of the argument VISUAL causes os command injection. This vulnerability is handled as CVE-2026-102829. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in steveukx git-js up to 2.0.0 and classified as critical. Affected by this vulnerability is the function parseEnv of the component argv-parser. The manipulation of the argument VISUAL with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect 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. Prior to 2.0.1 of the argv-parser package, parseEnv omits VISUAL from GitEnvKeys, so prepareEnv drops the value before vulnerabilityCheck can classify it as allowUnsafeEditor. A consuming application that forwards attacker-influenced environment values can therefore allow Git to invoke an attacker-selected editor during operations such as commit amendment or interactive rebase when no higher-priority editor setting overrides VISUAL and Git's terminal prerequisites are met. The executable runs with the privileges of the Node.js process. This issue is fixed in argv-parser 2.0.1.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-102829 since 09/29/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1202 according to MITRE ATT&CK.

Upgrading to version 2.0.1 eliminates this vulnerability.

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Productinfo

Type

• Versioning Software

Vendor

• steveukx

Name

• git-js

Version

• 2.0

Website

• Product: https://github.com/steveukx/git-js/

CPE 2.3info

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CPE 2.2info

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