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CVE-2026-28291

HIGH

8.1

Description

simple-git enables running native Git commands from JavaScript. Versions up to and including 3.31.1 allow execution of arbitrary commands through Git option manipulation, bypassing safety checks meant to block dangerous options like -u and --upload-pack. The flaw stems from an incomplete fix for CVE-2022-25860, as Git's flexible option parsing allows numerous character combinations (e.g., -vu, -4u, -nu) to circumvent the regular-expression-based blocklist in the unsafe operations plugin. Due to the virtually infinite number of valid option variants that Git accepts, a complete blocklist-based mitigation may be infeasible without fully emulating Git's option parsing behavior. This issue has been fixed in version 3.32.0.

CVE Details

CVSS v3.1 Score8.1

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published4/13/2026

Last Modified4/14/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-78

References

https://github.com/steveukx/git-js/blob/789c13ebabcf18ebe0b3a0c88ebb4037dede42e3/simple-git/src/lib/plugins/block-unsafe-operations-plugin.ts#L26(security-advisories@github.com)

https://github.com/steveukx/git-js/commit/1effd8e5012a5da05a9776512fac3e39b11f2d2d(security-advisories@github.com)

https://github.com/steveukx/git-js/releases/tag/simple-git%403.32.0(security-advisories@github.com)

https://github.com/steveukx/git-js/security/advisories/GHSA-jcxm-m3jx-f287(security-advisories@github.com)

https://www.cve.org/CVERecord?id=CVE-2022-25860(security-advisories@github.com)

https://github.com/steveukx/git-js/security/advisories/GHSA-jcxm-m3jx-f287(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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