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Hub/AI Security/Advisories/GHSA-v38p-wf49-hx2j

fetch: private-address guard bypass via IDNA hostnames (check and connect resolve different names)

MCP reference servers security advisory.

GHSAGHSA-v38p-wf49-hx2j
PublishedOct 25, 2026
SeverityMedium 6.3
CVENone assigned
Statuspatched
Affected>= 2026.10.10, <= 2026.10.19
Fixed in2026.10.24
ComponentMCP reference servers

Sources

Checked 2026-11-04. We copy severity and fix versions from the source and never estimate them.

Affected tools

Weekly, free

What changed in AI integrations

One short email when MCP clients, plugin ecosystems, IDE integrations, AI plan prices or security advisories change. Every item is sourced.

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