CVE-2026-94482: DoS

Description

Next.js is a React framework for building full-stack web applications. From 13.0.0 until 15.5.28 and 16.4.1, crafted requests targeting App Router applications with at least one Server Action can cause excessive CPU consumption and block processing of further requests in the same process. Applications using the Pages Router and App Router applications without Server Actions are not affected. This issue is fixed in versions 15.5.28 and 16.4.1.

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Weakness Type (CWE)

CWE-770 CWE-770

References

Other References

https://github.com/vercel/next.js/releases/tag/v15.5.28 https://github.com/vercel/next.js/releases/tag/v16.4.1 https://github.com/vercel/next.js/security/advisories/GHSA-p3m5-59mp-jv5r

Frequently Asked Questions

What is CVE-2026-94482? +

Next.js is a React framework for building full-stack web applications. From 13.0.0 until 15.5.28 and 16.4.1, crafted requests targeting App Router applications with at least one Server Action can cause excessive CPU consumption and block processing of further requests in the same process. Applications using the Pages Router and App Router applications without Server Actions are not affected. This issue is fixed in versions 15.5.28 and 16.4.1.

How do I check if I'm vulnerable to CVE-2026-94482? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-94482