CVE-2026-85788 - Issue with awslabs mysql-mcp-server

Summary

CVE-2026-85788 affects awslabs.mysql-mcp-server versions 1.0.21 and earlier, a self-hosted Model Context Protocol server distributed via github.com/awslabs/mcp and PyPI. Under certain conditions, SQL inline comments could bypass the server's read-only enforcement, letting a statement run that the check was meant to block. The source states the read-only mode is a best-effort safeguard, and the effective boundary is the permissions of the configured MySQL user.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

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