MMCP SnifferMCP Sniffer captures network traffic between MCP clients and servers and displays it in a web UI.

mcp-so:mcp-sniffer_shivdeepak

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92/100

First Seen

Feb 18, 2026

Last Scanned

Feb 18, 2026

Findings

Score

92/100

MEDIUM 1

Findings (1)

MEDIUM

Non-standard port communication EXFIL_010

exfiltration L30

Detects outbound connections to non-standard ports

http://127.0.0.1:8888

FIX

Restrict network connections to standard ports (80, 443) and explicitly allowlisted service ports. Block connections to unusual ports that could indicate covert channels.

FP?

Likely FP if the non-standard port is localhost (127.0.0.1) used for local development servers (e.g., port 3000, 8080, 5432 for a local database).