simple-git has Command Execution via Option-Parsing Bypass

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-28291
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-13 18:16:28 UTC
Updated2026-06-30 03:18:00 UTC
Descriptionsimple-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.

Risk And Classification

Primary CVSS: v3.1 8.1 HIGH from ADP

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

EPSS: 0.006520000 probability, percentile 0.466980000 (date 2026-07-02)

Problem Types: CWE-78 | CWE-78 CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') | CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

VersionSourceTypeScoreSeverityVector
3.1ADPCVSS8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1[email protected]Secondary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.10b0ca135-0b70-47e7-9f44-1890c2a1c46cSecondary8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1CNADECLARED8.1HIGHCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Simple-git Project Simple-git All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Steveukx Git-js affected < 3.32.0 Not specified
ADP Red Hat Red Hat Build Of Keycloak Not specified Not specified
ADP Red Hat Red Hat Process Automation 7 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 8 Not specified Not specified
ADP Red Hat Red Hat Enterprise Linux 9 Not specified Not specified
ADP Red Hat Red Hat JBoss Enterprise Application Platform 8 Not specified Not specified
ADP Red Hat Red Hat JBoss Enterprise Application Platform Expansion Pack Not specified Not specified

References

ReferenceSourceLinkTags
github.com/steveukx/git-js/commit/1effd8e5012a5da05a9776512fac3e39b11f2d2d [email protected] github.com Patch
www.cve.org/CVERecord [email protected] www.cve.org Third Party Advisory, VDB Entry
github.com/steveukx/git-js/security/advisories/GHSA-jcxm-m3jx-f287 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com Exploit, Vendor Advisory
security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-28291.json 0b0ca135-0b70-47e7-9f44-1890c2a1c46c security.access.redhat.com
bugzilla.redhat.com/show_bug.cgi 0b0ca135-0b70-47e7-9f44-1890c2a1c46c bugzilla.redhat.com
github.com/steveukx/git-js/releases/tag/simple-git%403.32.0 [email protected] github.com Release Notes
access.redhat.com/security/cve/CVE-2026-28291 0b0ca135-0b70-47e7-9f44-1890c2a1c46c access.redhat.com
github.com/steveukx/git-js/blob/789c13ebabcf18ebe0b3a0c88ebb4037dede42e3... [email protected] github.com Product
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
ADP2026-04-13T18:01:21.885ZReported to Red Hat.
ADP2026-04-13T17:15:14.594ZMade public.

Workarounds

ADP: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

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