Next.js Patches Nine Security Flaws Enabling SSRF, Middleware Bypass, DoS, and Internal Endpoint Disclosure

The Next.js team has released security updates that address nine vulnerabilities affecting the App Router, Server Actions, rewrites, image optimization, caching, and middleware deployments. Organizations are urged to upgrade to Next.js versions 15.5.21 or 16.2.11 immediately, as these updates fix high- and moderate-severity flaws that could lead to server-side request forgery (SSRF), authentication bypass, denial […]

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