CVE-2026-85626

git-mcp-server 2.15.1 Argument Injection via Git Ref Parameters

Published Sep 4, 2026 CVSS 4.0 · 8.7 High EPSS < 1% KEV · Not listed
Description
git-mcp-server 2.15.1 contains an argument injection vulnerability in the ref and object parameters of git_log, git_diff, and git_show tools that lack leading-dash validation. Attackers can inject git command-line options like --output= to write files outside the repository to arbitrary paths accessible by the process.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Cyanheads
Cyanheads git-mcp-server
Vendors & Products Cyanheads
Cyanheads git-mcp-server
Type Values Removed Values Added
Description git-mcp-server 2.15.1 contains an argument injection vulnerability in the ref and object parameters of git_log, git_diff, and git_show tools that lack leading-dash validation. Attackers can inject git command-line options like --output= to write files outside the repository to arbitrary paths accessible by the process.
Title git-mcp-server 2.15.1 Argument Injection via Git Ref Parameters
Weaknesses CWE-88
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 1, 2026, 6:39 PM
Reserved
Sep 4, 2026, 11:03 AM
Status
Deferred
Published
Sep 4, 2026, 3:17 PM
Modified
Sep 23, 2026, 5:17 PM