Public proof of conceptFix available

CVE-2026-28291

Q: Is CVE-2026-28291 actively exploited?

A proof-of-concept exploit exists for CVE-2026-28291, but active exploitation has not been confirmed at this time.

Q: What is the CVSS score for CVE-2026-28291?

CVE-2026-28291 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

A public proof of concept exists; no exploitation attested.

Published2026-04-13
Fixed in3.32.0
WeaknessCWE-78

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2026-04-1318:16CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2026-28291?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2026-28291?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Simple-git project simple-git

Branch	Affected	Fixed in	Source
3.32	< 3.32.0	3.32.0	NVD · OSV

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Simple-git project simple-git to 3.32.0

Advisories and patches

github.comPatch
github.comRelease Notes
github.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVE recordread 2026-10-23
CISA-ADPSSVC decisionpoc2026-04-14
OpenCVESSVC decisionpoc—
CNACVSS 3.18.1read 2026-10-23
CNAweakness (CWE)CWE-78read 2026-10-23
FIRST EPSSEPSS score0.9 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2026-04-13
Last Modified: 2026-07-15
NVD status: Modified

Frequently asked questions

What is CVE-2026-28291?

Is CVE-2026-28291 actively exploited?

A proof-of-concept exploit exists for CVE-2026-28291, but active exploitation has not been confirmed at this time.

What is the CVSS score for CVE-2026-28291?

CVE-2026-28291 has a CVSS v3 base score of 8.1 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

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