CVE-2024-51479: Next.js authorization bypass vulnerability

December 17, 2024 (updated September 10, 2025)

If a Next.js application is performing authorization in middleware based on pathname, it was possible for this authorization to be bypassed.

References

github.com/advisories/GHSA-7gfc-8cq8-jh5f
github.com/vercel/next.js
github.com/vercel/next.js/commit/1c8234eb20bc8afd396b89999a00f06b61d72d7b
github.com/vercel/next.js/releases/tag/v14.2.15
github.com/vercel/next.js/security/advisories/GHSA-7gfc-8cq8-jh5f
nvd.nist.gov/vuln/detail/CVE-2024-51479

Code Behaviors & Features

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