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

Quick assessment

Affected
nuxt nuxt
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Nuxt是Nuxt组织开源的一个构建服务端渲染应用的开发框架。 Nuxt 4.4.0至4.5.1之前版本存在安全漏洞，该漏洞源于import.meta.prerender未强制执行，导致运行时缓存条目在路由中间件和页面守卫之前被返回，从而泄露其他用户的SSR数据。

CVSS 7.5 · High EPSS 0.51% · P41

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage

Affected Version Matrix 1

VendorProduct Version RangeStatus
nuxt nuxt >= 4.4.0, < 4.5.1 affected
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I. Basic Information for CVE-2026-71316

Vulnerability Information
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Vulnerability Title
Nuxt runtime payload cache discloses another user's SSR data across users and to unauthenticated clients
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过缓存导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Nuxt 信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nuxt是Nuxt组织开源的一个构建服务端渲染应用的开发框架。 Nuxt 4.4.0至4.5.1之前版本存在安全漏洞，该漏洞源于import.meta.prerender未强制执行，导致运行时缓存条目在路由中间件和页面守卫之前被返回，从而泄露其他用户的SSR数据。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nuxt nuxt >= 4.4.0, < 4.5.1 -

II. Public POCs for CVE-2026-71316

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Reproduction recording is a Pro+ exclusive
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claude_code · 7125 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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POC zip download
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III. Intelligence Information for CVE-2026-71316

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Patches & Fixes for CVE-2026-71316 (1)

Vendor Advisories for CVE-2026-71316 (1)

Vendor Pages for CVE-2026-71316 (1)

Same Patch Batch · nuxt · 2026-08-05 · 7 CVEs total

CVE-2026-71319 9.6 CRITICAL Nuxt.js Unauthenticated WebSocket RPC Call Leading to Remote Code Execution
CVE-2026-71315 8.2 HIGH Nuxt route rules silently dropped for mixed-case paths, bypassing appMiddleware auth gates
CVE-2026-71320 8.1 HIGH Nuxt: Server-Side Remote Code Execution via Runtime Template Injection in Nuxt Server Isla
CVE-2026-71314 7.5 HIGH Nuxt: Unauthenticated out-of-memory crash via unbounded v-for expansion in island renderin
CVE-2026-71321 7.5 HIGH Nuxt: Unauthenticated CPU exhaustion parsing and hashing the Nuxt island endpoint body bef
CVE-2026-71318 4.8 MEDIUM Nuxt: Unauthorized Component Instantiation via Server Island Props

IV. Related Vulnerabilities

Same product: nuxt
Same vendor: nuxt
Same weakness: CWE-524

V. Comments for CVE-2026-71316

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