What is CVE-2026-44579?

CVE-2026-44579 is a high-severity vulnerability in Vercel Next.js, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-05-13.

How severe is CVE-2026-44579?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Vercel Next.js

CVE-2026-44579

Next.js is a React framework for building full-stack web applications. From to before 15.5.16 and 16.2.5, applications using Partial Prerendering through the Cache Components feature can be vulnerable to connection exhaustion through craf…

EPSS: 0.000 (5.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Vercel Next.js — versions >= 16.0.0, < 16.2.5, >= 15.0.0, < 15.5.16

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-44579?: CVE-2026-44579 is a high-severity vulnerability in Vercel Next.js, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-05-13.
How severe is CVE-2026-44579?: High severity. CVSS v3 base score is 7.5 out of 10.