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Vulnerability · Published May 5, 2026 · Assigned by VulDB

CVE-2026-781254yyyu code-mcp MCP Tool server.py git_operation command injection

High 7.3

In plain English

A high-severity command injection in code-mcp from 54yyyu. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 74% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)1.5%top 26.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

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.

Affected products (as reported)

VendorProductVersions
54yyyu code-mcp 4cfc4643541a110c906d93635b391bf7e357f4a8

Weakness: CWE-77, CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References