CVE-2026-9467
MEDIUMdebugmcp mcp-debugger server.ts handleGetSourceContext path traversal
Title source: cnaDescription
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.
References (4)
Core 4
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-365448 | debugmcp mcp-debugger server.ts handleGetSourceContext path traversal
https://vuldb.com/vuln/365448
Signature, Permissions Required signature
permissions-required
VDB-365448 | CTI Indicators (IOB, IOC, TTP, IOA)
https://vuldb.com/vuln/365448/cti
Third Party Advisory third-party-advisory
Submit #813980 | debugmcp mcp-debugger 3e83906c8358965efd683c734e94a75d338400fa Path Traversal
https://vuldb.com/submit/813980
Exploit exploit
issue-tracking
https://github.com/hyk6225/public_exp/issues/1
Scores
CVSS v3
4.3
EPSS
0.0044
EPSS Percentile
34.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-22
Status
published
Products (20)
debugmcp/mcp-debugger
0.1
debugmcp/mcp-debugger
0.10
debugmcp/mcp-debugger
0.11
debugmcp/mcp-debugger
0.12
debugmcp/mcp-debugger
0.13
debugmcp/mcp-debugger
0.14
debugmcp/mcp-debugger
0.15
debugmcp/mcp-debugger
0.16
debugmcp/mcp-debugger
0.17
debugmcp/mcp-debugger
0.18
... and 10 more
Published
May 25, 2026
Tracked Since
May 25, 2026