CVE-2026-7812 54yyyu code-mcp MCP Tool server.py git_operation command injection

Medium 6.9 Published Updated

Remote attackers can execute arbitrary commands via the git_operation function in the code-mcp MCP Tool due to improper input validation.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-7812?

CVE-2026-7812 is a medium-severity command injection vulnerability in 54yyyu code-mcp, published on 5 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A vulnerability was found in 54yyyu code-mcp up to 4cfc4643541a110c906d93635b391bf7e357f4a8. The impacted element is the function git_operation of the file src/code_mcp/server.py of the component MCP Tool. Performing a manipulation of the argument operation results in command injection. The attack can be initiated remotely. The exploit has been made public and could be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.

Weakness: CWE-77, CWE-74

Which versions are affected by CVE-2026-7812?

How do I fix CVE-2026-7812?

No fix has been published for CVE-2026-7812 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-7812 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-7812 exists.

Sources

Also known as GHSA-qwv5-f74g-8p86.

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