Path Traversal in 54yyyu Code-Mcp
CVE-2026-7811
A vulnerability has been found in 54yyyu code-mcp up to 4cfc4643541a110c906d93635b391bf7e357f4a8. The affected element is the function is_safe_path of the file src/code_mcp/server.py of the component MCP File Handler. Such manipulation leads to path traversal. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. This product takes the approach of rolling releases to provide continious delivery. Therefore, version details for affected and updated releases are not available. The project was informed of the problem early through an issue report but has not responded yet.
Vulnerability class: Path Traversal (Directory Traversal)
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: 0.006 (46.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 46.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.006 · change: +0.002
Affected products
- 54yyyu Code-Mcp — versions 4cfc4643541a110c906d93635b391bf7e357f4a8
Weakness classification (CWE)
References
- github.com/54yyyu/code-mcp/ (product)
- github.com/54yyyu/code-mcp/issues/4 (issue-tracking, exploit)
- vuldb.com/submit/807751 (third-party-advisory)
- vuldb.com/vuln/361071 (technical-description, vdb-entry)
- vuldb.com/vuln/361071/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-7811?
- CVE-2026-7811 is a high-severity vulnerability in 54yyyu Code-Mcp, classified under Path Traversal. CVSS score: 7.3/10. Published 2026-05-05.
- How severe is CVE-2026-7811?
- High severity. CVSS v3 base score is 7.3 out of 10.