High 8.1Published Apr 13, 2026

CVE-2026-28291simple-git has Command Execution via Option-Parsing Bypass

Updated under an hour ago (Oct 26, 2026, 2:30 PM ET)

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It affects steveukx git-js and 6 other products. Add what you run to find out whether that includes you.

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Every CVE for steveukx git-js

Exploited in the last 30 days

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: 8.1 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-78
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Modified
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

steveukx git-js steveukx:git_js (from the name)	before 3.32.0	CNA record
Red Hat Red Hat Build of Keycloak redhat:build_keycloak	All versions	CISA ADP
Red Hat Red Hat Enterprise Linux 8 redhat:enterprise_linux	8	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform 8 redhat:jboss_enterprise_application_platform	8	CISA ADP
Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack redhat:jbosseapxp	Versions not stated	CISA ADP
Red Hat Red Hat Process Automation 7 redhat:jboss_enterprise_bpms_platform	7	CISA ADP
simple-git_project simple-git simple-git_project:simple-git	before 3.32.0	NVD

References

References

https://github.com/steveukx/git-js/security/advisories/GHSA-jcxm-m3jx-f287	x-refsource-confirm, exploit, vendor-advisory
https://github.com/steveukx/git-js/commit/1effd8e5012a5da05a9776512fac3e39b11f2d2d	x-refsource-misc, patch
https://github.com/steveukx/git-js/blob/789c13ebabcf18ebe0b3a0c88ebb4037dede42e3/simple-git/src/lib/plugins/block-unsafe-operations-plugin.ts#L26	x-refsource-misc, product
https://github.com/steveukx/git-js/releases/tag/simple-git%403.32.0	x-refsource-misc, release-notes
https://www.cve.org/CVERecord?id=CVE-2022-25860	x-refsource-misc, third-party-advisory, vdb-entry
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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.