CVE-2026-71316: Nuxt runtime payload cache discloses another user's SSR data across users and to unauthenticated clients

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: 2026-08-05 · updated 2026-09-08
Weakness: CWE-524

Description

Nuxt is an open-source web development framework for Vue.js. From 4.4.0 until 4.5.1, runtime cache:nuxt:payload entries for /<page>/_payload.json can be returned before route middleware and page guards because import.meta.prerender is not enforced, disclosing another user's SSR data. This issue is fixed in 4.5.1.

Affected products

nuxt: from 4.4.0, < 4.5.1

References

https://github.com/nuxt/nuxt/commit/ac9b41a36b62296a117862254ee7d2b21a2a5203
https://github.com/nuxt/nuxt/releases/tag/v4.5.1
https://github.com/nuxt/nuxt/security/advisories/GHSA-wm8w-6qjm-cv43

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