RCE in Chrischinchilla Vale-Mcp
CVE-2026-5621
A vulnerability was found in ChrisChinchilla Vale-MCP up to 0.1.0. Affected by this vulnerability is an unknown functionality of the file src/index.ts of the component HTTP Interface. The manipulation of the argument config_path results in os command injection. Attacking locally is a requirement. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Command Injection (OS Command Injection)
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: 0.014 (71.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.014 · change: +0.004
Affected products
- Chrischinchilla Vale-Mcp — versions 0.1.0
Weakness classification (CWE)
References
- vuldb.com/vuln/355411 (technical-description, vdb-entry)
- vuldb.com/vuln/355411/cti (signature, permissions-required)
- vuldb.com/submit/785591 (third-party-advisory)
- github.com/wing3e/public_exp/issues/27 (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-5621?
- CVE-2026-5621 is a medium-severity vulnerability in Chrischinchilla Vale-Mcp, classified under Command Injection. CVSS score: 5.3/10. Published 2026-04-06.
- How severe is CVE-2026-5621?
- Medium severity. CVSS v3 base score is 5.3 out of 10.