simple-git has Command Execution via Option-Parsing Bypass (steveukx git-js)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.77 % · percentile 55 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-78 — Improper Neutralization of Special Elements used in an OS Command
References
- https://github.com/steveukx/git-js/security/advisories/GHSA-jcxm-m3jx-f287
- https://github.com/steveukx/git-js/commit/1effd8e5012a5da05a9776512fac3e39b11f2d2d
- https://github.com/steveukx/git-js/blob/789c13ebabcf18ebe0b3a0c88ebb4037dede42e3/simple-git/src/lib/plugins/block-unsafe-operations-plugin.ts#L26
- https://github.com/steveukx/git-js/releases/tag/simple-git%403.32.0
- https://www.cve.org/CVERecord?id=CVE-2022-25860
- https://access.redhat.com/security/cve/CVE-2026-28291
- https://bugzilla.redhat.com/show_bug.cgi?id=2457930
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28291.json
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | GitHub_M |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | redhat-SADP |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | HIGH 8.1 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H | NVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary) |
Advisories
- GHSA-jcxm-m3jx-f287 — simple-git Affected by Command Execution via Option-Parsing Bypass
European references
- ENISA EUVD · EUVD-2026-22026
- GCVE · GCVE-0-2026-28291
Affected configurations (NVD CPE)
cpe:2.3:a:simple-git_project:simple-git:*:*:*:*:*:node.js:*:*< 3.32.0
Affected products
| Product | Versions |
|---|---|
| steveukx · git-js | affected < 3.32.0 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |