steveukx git-js up to 3.x Configuration Includes git.clone customArgs code injection

Summaryinfo

A vulnerability classified as critical was found in steveukx git-js up to 3.x. This impacts the function git.clone of the component Configuration Includes. The manipulation of the argument customArgs results in code injection. This vulnerability is cataloged as CVE-2026-102826. The attack may be launched remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in steveukx git-js up to 3.x. It has been classified as critical. Affected is the function git.clone of the component Configuration Includes. The manipulation of the argument customArgs with an unknown input leads to a code injection vulnerability. CWE is classifying the issue as CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. Prior to 4.0.0, the default blockUnsafeOperationsPlugin does not completely reject configuration includes supplied through customArgs to git.clone(). The missing include.path classification permits Git to load an attacker-controlled configuration file, and the initial remediation does not cover includeIf.<condition>.path, allowing the same file-loading primitive through a conditional include. A loaded configuration can set an executable Git option such as core.sshCommand, which Git invokes during the clone operation with the privileges of the Node.js process. Exploitation requires the application to pass attacker-influenced custom arguments and requires an attacker-controlled file that the process can read. This issue is fixed in 4.0.0.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-102826 since 09/29/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.

Upgrading to version 4.0.0 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Versioning Software

Vendor

• steveukx

Name

• git-js

Version

• 3.x

Website

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

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