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CVE-2026-85626— git-mcp-server 2.15.1 Argument Injection via Git Ref Parameters

Quick assessment

Affected
cyanheads git-mcp-server
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

git-mcp-server 2.15.1 中存在参数注入漏洞，具体位于 、 和 工具的 和 参数中，这些参数缺乏对以连字符（-）开头的输入进行校验。攻击者可以借此注入诸如 的 git 命令行选项，从而将文件写入仓库之外、且可被该进程访问的任意路径。

CVSS 7.5 · High EPSS 0.27% · P19

Affected Version Matrix 1

VendorProduct Version RangeStatus
cyanheads git-mcp-server ≤ 2.15.3 affected
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I. Basic Information for CVE-2026-85626

Vulnerability Information
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Vulnerability Title
git-mcp-server 2.15.1 Argument Injection via Git Ref Parameters
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
cyanheads git-mcp-server 0 ~ 2.15.3 -

II. Public POCs for CVE-2026-85626

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III. Intelligence Information for CVE-2026-85626

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Patches & Fixes for CVE-2026-85626 (1)

Vendor Advisories for CVE-2026-85626 (1)

Proof of Concept for CVE-2026-85626 (2)

Security Blog Posts for CVE-2026-85626 (1)

IV. Related Vulnerabilities

Same product: git-mcp-server
Same vendor: cyanheads
Same weakness: CWE-88

V. Comments for CVE-2026-85626

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