CVE-2024-39693: Next.js Denial of Service (DoS) condition

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-07-10 · updated 2026-06-17
Weakness: CWE-400

Description

Next.js is a React framework. A Denial of Service (DoS) condition was identified in Next.js. Exploitation of the bug can trigger a crash, affecting the availability of the server. his vulnerability was resolved in Next.js 13.5 and later.

Affected products

Next.js: from 13.3.1 before 13.5.0 — fixed in 13.5.0
Npm Next: from 13.3.1 before 13.5.0 — fixed in 13.5.0

How to fix

Upgrade to a fixed version: Next.js 13.5.0; Npm Next 13.5.0. Check the vendor advisory for mitigations.

References

https://github.com/vercel/next.js/security/advisories/GHSA-fq54-2j52-jc42
https://github.com/vercel/next.js/security/advisories/GHSA-fq54-2j52-jc42

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