RCE in Bazinga012 Mcp Code Executor
CVE-2026-4199
A vulnerability was identified in bazinga012 mcp_code_executor up to 0.3.0. Affected by this issue is the function installDependencies of the file src/index.ts. Such manipulation leads to command injection. The attack can only be performed from a local environment. The exploit is publicly available and might be used. It is best practice to apply a patch to resolve this issue. 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 5.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.011 (63.9th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 64th percentile — 63.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.007 · newest: 0.011 · change: +0.004
Affected products
- Bazinga012 Mcp Code Executor — versions 0.1, 0.2, 0.3.0
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/bazinga012/mcp_code_executor/issues/17 (issue-tracking)
- github.com/user-attachments/files/25931133/mcp_code_executor_security_advisory… (exploit)
- github.com/bazinga012/mcp_code_executor/pull/18/commits/a94ec2fea318597646ba1c4… (issue-tracking, patch)
- github.com/bazinga012/mcp_code_executor/ (product)
Frequently asked questions
- What is CVE-2026-4199?
- CVE-2026-4199 is a medium-severity vulnerability in Bazinga012 Mcp Code Executor, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.3/10. Published 2026-03-16.
- How severe is CVE-2026-4199?
- Medium severity. CVSS v3 base score is 5.3 out of 10.