Glow Labs: coding agents keep installing archived MCP servers from memory, including a Puppeteer one with an unpatched RCE
Published Nov 2, Glow Labs found that in 98% of sessions where an agent set up a deprecated MCP server (e.g. @modelcontextprotocol/server-github instead of GitHub's official one), the name came from training data, across Claude Code, Cursor, and Codex CLI. Four high-severity bugs include a prompt-injection-to-RCE in the archived Puppeteer server, which maintainers won't fix; scan your MCP configs and pin approved server packages.
