Vulnerability · Published Aug 5, 2026 · Assigned by GitHub_M

CVE-2026-71314Nuxt: Unauthenticated out-of-memory crash via unbounded v-for expansion in island rendering

High 7.5

In plain English

A high-severity uncontrolled resource consumption in nuxt from nuxt. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.9%top 39.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, an unauthenticated attacker can use a server island v-for prop, including vforToArray and , to trigger unbounded SSR memory allocation until MAX_VFOR_LENGTH = 100000 and crash the Nuxt process. This issue is fixed in 3.21.10 and 4.5.1.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	nuxt	4.5.1	GHSA-hxcr-hm88-mpq6
npm	nuxt	3.21.10	GHSA-hxcr-hm88-mpq6

Affected products (as reported)

Vendor	Product	Versions
nuxt	nuxt	>= 4.0.0, < 4.5.1>= 3.1.0, < 3.21.10

Weakness: CWE-400, CWE-770, CWE-789, CWE-1284 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

https://github.com/nuxt/nuxt/security/advisories/GHSA-hxcr-hm88-mpq6 x_refsource_CONFIRM
https://github.com/nuxt/nuxt/commit/4e35ae9babd94be53246e31200232d48438bb34e x_refsource_MISC
https://github.com/nuxt/nuxt/commit/668cdfdfda41849ed11c1ee5e2067a11fc103b22 x_refsource_MISC
https://github.com/nuxt/nuxt/releases/tag/v3.21.10 x_refsource_MISC
https://github.com/nuxt/nuxt/releases/tag/v4.5.1 x_refsource_MISC