MySQL MCP Server: Missing Origin/Host Validation in SSE Transport Enables Unauthenticated SQL Execution (DNS Rebindin...

Date Sep 11, 2026

Type Vendor advisory

Signal High-risk advisory

Vendor / Product PyPI · mysql-mcp-server

CVE CVE-2026-59971

High-risk advisory CVE-2026-59971

Summary

MySQL MCP Server: Missing Origin/Host Validation in SSE Transport Enables Unauthenticated SQL Execution (DNS Rebinding / Direct Exposure)

Why it matters

GitHub has published a reviewed security advisory for mysql-mcp-server. Prioritize it with other application dependency updates.

Operator check

Check whether mysql-mcp-server is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.

Sources

GitHub Advisory GHSA-rqfv-2mw9-78g2 NVD — CVE-2026-59971 Source reference

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.

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