CVE-2026-9467 MEDIUM

CVE-2026-9467: debugmcp mcp-debugger server.ts handleGetSourceContext path traversal

Vendor Debugmcp
Product mcp-debugger
Weakness CWE-22 · Path traversal
Published May 25, 2026
Last update May 26, 2026

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality
Integrity

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

May 25, 2026 CVE published
May 26, 2026 Record updated