CVE-2026-27977

Next.js is a React framework for building full-stack web applications. Starting in version 16.0.1 and prior to version 16.1.7, in next dev, cross-site protection for internal websocket endpoints could treat Origin: null as a bypass case even if allowedDevOrigins is configured, allowing...

PT-2026-25908

Name of the Vulnerable Software and Affected Versions Next.js versions 16.0.1 through 16.1.6 Description Next.js, a React framework for building full-stack web applications, had a flaw in its development mode next dev where cross-site protection for internal websocket endpoints could incorrectly...