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Hub/AI Security/Advisories/GHSA-f6mc-jg3x-vq53

/fetch proxy leaks Authorization/Cookie headers across cross-origin redirects (regression from the SSRF hardening in v1.0.0)

MCP Inspector security advisory.

GHSAGHSA-f6mc-jg3x-vq53
PublishedOct 21, 2026
SeverityMedium
CVENone assigned
Statuspatched
Affected>= 1.0.0, <= 1.0.2, >= 1.0.0, <= 1.0.2
Fixed in1.0.3, 1.0.3
ComponentMCP Inspector

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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