RCE in 54yyyu Code-Mcp
CVE-2026-7812
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.021 (80.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.021 · change: +0.007
Affected products
- 54yyyu Code-Mcp — versions 4cfc4643541a110c906d93635b391bf7e357f4a8
Weakness classification (CWE)
References
- github.com/54yyyu/code-mcp/ (product)
- github.com/54yyyu/code-mcp/issues/5 (issue-tracking, exploit)
- vuldb.com/submit/807752 (third-party-advisory)
- vuldb.com/vuln/361072 (technical-description, vdb-entry)
- vuldb.com/vuln/361072/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-7812?
- CVE-2026-7812 is a high-severity vulnerability in 54yyyu Code-Mcp, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.3/10. Published 2026-05-05.
- How severe is CVE-2026-7812?
- High severity. CVSS v3 base score is 7.3 out of 10.