CVE-2026-9467
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk36th percentile - higher than 36% of all known CVEs
Summary
debugmcp mcp-debugger up to version 0.20.0 has a path traversal vulnerability in the handleGetSourceContext function in src/server.ts. Attackers can manipulate paths to remotely read files outside the allowed directory.
Risk Assessment
An attacker can access sensitive files on the server, such as configurations or credentials.
Recommendation
Update mcp-debugger to a version above 0.20.0 or apply the available patch.
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Original NVD description (English source)
A vulnerability was identified in debugmcp mcp-debugger up to 0.20.0. Impacted is the function handleGetSourceContext of the file src/server.ts. The manipulation leads to path traversal. The attack is possible to be carried out remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

