# Next.js Dev Server MCP Flaw CVE-2026-94486 Explained

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## Article Metadata
- Title: Next.js Dev Server MCP Flaw CVE-2026-94486 Explained
- Summary: CVE-2026-94486: the Next.js 16 dev server's /_next/mcp endpoint let malicious sites read project data. Affected versions, the CVE-2026-94485 mix-up, and the fix.
- Published: Oct 2, 2026, 4:54 PM EDT
- Updated: Oct 2, 2026, 4:54 PM EDT
- Category: Exploits
- Primary topic: Cve 2026 94486
- Authors: Samir Haddad
- Read time: 5 min
- Language: en_US
- Publication time zone: America/New_York (U.S. Eastern Time)
- Access: Free to read

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