Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Simple-Git Project | Simple-Git | < 3.32.0 |
Related Weaknesses (CWE)
References
- https://github.com/steveukx/git-js/blob/789c13ebabcf18ebe0b3a0c88ebb4037dede42e3Product
- https://github.com/steveukx/git-js/commit/1effd8e5012a5da05a9776512fac3e39b11f2dPatch
- https://github.com/steveukx/git-js/releases/tag/simple-git%403.32.0Release Notes
- https://github.com/steveukx/git-js/security/advisories/GHSA-jcxm-m3jx-f287ExploitVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2022-25860Third Party AdvisoryVDB Entry
- https://github.com/steveukx/git-js/security/advisories/GHSA-jcxm-m3jx-f287ExploitVendor Advisory
FAQ
What is CVE-2026-28291?
CVE-2026-28291 is a vulnerability with a CVSS score of 8.1 (HIGH). 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...
How severe is CVE-2026-28291?
CVE-2026-28291 has been rated HIGH with a CVSS base score of 8.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-28291?
Check the references section above for vendor advisories and patch information. Affected products include: Simple-Git Project Simple-Git.