CVE-2025-30370: Command Injection (CVSS 7.4)

Description

jupyterlab-git is a JupyterLab extension for version control using Git. On many platforms, a third party can create a Git repository under a name that includes a shell command substitution string in the syntax $(<command>). These directory names are allowed in macOS and a majority of Linux distributions. If a user starts jupyter-lab in a parent directory of this inappropriately-named Git repository, opens it, and clicks "Git > Open Git Repository in Terminal" from the menu bar, then the injected command <command> is run in the user's shell without the user's permission. This issue is occurring because when that menu entry is clicked, jupyterlab-git opens the terminal and runs cd <git-repo-path> through the shell to set the current directory. Doing so runs any command substitution strings present in the directory name, which leads to the command injection issue described here. A previous patch provided an incomplete fix. This vulnerability is fixed in 0.51.1.

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CVSS v3.1 Score

7.4

HIGH

CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:H

Weakness Type (CWE)

CWE-78 OS Command Injection

References

Other References

https://github.com/jupyterlab/jupyterlab-git/blob/7eb3b06f0092223bd5494688ec264527bbeb2195/src/commandsAndMenu.tsx#L175-L184 https://github.com/jupyterlab/jupyterlab-git/commit/b46482993f76d3a546015c6a94ebed8b77fc2376 https://github.com/jupyterlab/jupyterlab-git/pull/1196 https://github.com/jupyterlab/jupyterlab-git/security/advisories/GHSA-cj5w-8mjf-r5f8 https://github.com/jupyterlab/jupyterlab-git/security/advisories/GHSA-cj5w-8mjf-r5f8

Frequently Asked Questions

What is CVE-2025-30370? +

jupyterlab-git is a JupyterLab extension for version control using Git. On many platforms, a third party can create a Git repository under a name that includes a shell command substitution string in the syntax $(<command>). These directory names are allowed in macOS and a majority of Linux distributions. If a user starts jupyter-lab in a parent directory of this inappropriately-named Git repository, opens it, and clicks "Git > Open Git Repository in Terminal" from the menu bar, then the injected command <command> is run in the user's shell without the user's permission. This issue is occurring because when that menu entry is clicked, jupyterlab-git opens the terminal and runs cd <git-repo-path> through the shell to set the current directory. Doing so runs any command substitution strings present in the directory name, which leads to the command injection issue described here. A previous patch provided an incomplete fix. This vulnerability is fixed in 0.51.1. It has a CVSS v3.1 base score of 7.4 (HIGH).

How severe is CVE-2025-30370? +

CVE-2025-30370 has a CVSS v3.1 score of 7.4 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2025-30370? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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