medium6.8
CVE-2026-43901
Wireshark MCP is an MCP Server that turns tshark into a structured analysis interface, then layers in optional Wireshark suite utilities.
Impact
Wireshark MCP is an MCP Server that turns tshark into a structured analysis interface, then layers in optional Wireshark suite utilities. In 1.1.5 and earlier, wireshark-mcp exposes a wireshark_export_objects MCP tool that accepts an attacker-controlled dest_dir parameter and passes it to tshark's --export-objects flag with no mandatory path restriction. The path sandbox (_allowed_dirs) is None by default and only activates when the environment variable WIRESHARK_MCP_ALLOWED_DIRS is explicitly set. In a default installation, any directory on the filesystem can be used as the export destination.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | wireshark-mcp | <= 1.1.5 | none recorded |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Bx33661 | Wireshark Mcp | through 1.1.5 |