CVE-2026-9467
debugmcp mcp-debugger server.ts handleGetSourceContext path traversal
Vexday Risk Score
33Attention
SSVC decision (CISA)
Attend
PoC available → attend closely
Exploit maturity
Proof of concept
Public proof of concept exists, but not yet automated.
CVSS 5.3EPSS 0.4%KEV nãoPoC públicaNuclei —Metasploit —Patch —
Lifecycle
25 May 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
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
Affected products
debugmcp · mcp-debuggerpublic PoCs found — 1
cve_referencegithub.com/hyk6225/public_exp/issues/1unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.