CVE Feed

    Dashboard / CVE / CVE-2026-71321

    CVE-2026-71321

    Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, the internal island renderer endpoint `/__nuxt_island/...` decodes and hashes attacker-controlled JSON body input with destr and ohash before validating the URL-resident hash. An unauthenticated `POST /__nuxt_island/_.json` with a large JSON body is fully read, parsed, hashed, and then rejected, which wastes CPU on Nitro single event loop and delays concurrent requests. No valid hash and no authentication are required. This issue is fixed in 3.21.10 and 4.5.1.

    Published:Aug 5, 2026
    Last Modified:Aug 6, 2026
    EPS:Aug 5, 2026
    EPSS Score:0.00422
    CVSS Score:7.5

    Affected Products

    Vendor
    Nuxt
    Product
    Nuxt

    Exploits

    No exploit reference

    Related CVEs

    CVE-2026-72744 (CVSS 6.9) — Nuxt versions >= 4.4.7 and < 4.5.1, and >= 3.21.7 and < 3.21.10, contain an information disclosure vulnerabili…
    CVE-2026-71320 (CVSS 8.1) — Nuxt is an open-source web development framework for Vue.js. From 3.4.0 until 3.21.10 and 4.5.1, an attacker c…
    CVE-2026-71318 (CVSS 4.8) — Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, an attacker c…
    CVE-2026-71316 (CVSS 7.5) — Nuxt is an open-source web development framework for Vue.js. From 4.4.0 until 4.5.1, runtime cache:nuxt:payloa…
    CVE-2026-71315 (CVSS 8.2) — Nuxt is an open-source web development framework for Vue.js. From 3.21.7 until 3.21.10 and 4.5.1, mixed-case r…
    CVE-2026-71314 (CVSS 7.5) — Nuxt is an open-source web development framework for Vue.js. From 3.1.0 until 3.21.10 and 4.5.1, an unauthenti…
    CVE-2026-56301 (CVSS 6.8) — Nuxt 4.0.0 before 4.4.7 and 3.18.0 before 3.21.7, when running the development server (nuxt dev) on Linux, bin…
    CVE-2026-56698 (CVSS 5.3) — Nuxt versions 4.0.0 before 4.4.7 and 3.x before 3.21.7 fail to validate script-capable URLs in the navigateTo …
    CVE-2026-56697 (CVSS 5.3) — Nuxt versions 4.0.0 before 4.4.7 and 3.x before 3.21.7 accept protocol-relative paths such as //evil.com in th…
    CVE-2026-56326 (CVSS 5.3) — Nuxt versions 4.0.0 before 4.4.7 and 3.x before 3.21.7 contain a server-side open redirect vulnerability in na…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High