Severity
Details
- CVSS score
- 2.3
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Overview
About vulnerability
Impact
An application that renders <NuxtLink :to="..."> with a value it does not control can be made to render an anchor whose href executes script in the application’s origin when clicked.
This is an incomplete fix for [GHSA-934w-87qh-qr26](https://github.com/nuxt/nuxt/security/advisories/GHSA-934w-87qh-qr26) (CVE-2026-53722). It only affects applications running without a pages/ directory, where pages resolves to false and Nuxt registers its own router in place of vue-router. Applications using vue-router are not affected.
Prefixing javascript: with an ASCII C0 control character, for example %01, meant the value was not recognised as having a protocol. It was classified as an internal route and so never reached the protocol check added in GHSA-934w-87qh-qr26, and the router used for pages: false passed it through to the rendered href unchanged. Browsers strip the leading control character and run the result as a script URL.
Both <NuxtLink custom> and the default anchor are affected, and the href is present in the server-rendered HTML.
Mitigating factors
- The application must have
pagesdisabled (nopages/directory, orpages: false). - The application must bind untrusted input to
:to. - A victim must click the rendered link.
Affected versions
nuxt <4.6.0, including all Nuxt 3 releases. Versions before 4.4.7 and 3.21.7 are also affected by GHSA-934w-87qh-qr26.
Patches
Fixed in [email protected]. Nuxt 3 reached end of life on 31 July 2026 and will not receive a fix.
Anchor href values are now checked for script-capable protocols wherever they are rendered, including the router used when pages is disabled. Protocol detection also moved to the platform URL parser, so a URL is classified the same way the browser will read it.
Workarounds
Upgrade to [email protected] or later. If you cannot upgrade, including on Nuxt 3, validate values before binding them to :to, for example by rejecting anything that is not a path beginning with a single /.
Details
- Affected product:
- Vue , nuxi , nuxt , nuxt-cli , nuxt-devtools-ui-kit , nuxt-nitro-server , nuxt-rspack-builder , nuxt-vite-builder , nuxt-vite-server , nuxt-webpack-builder , powersync-nuxt , sentry-nuxt , zephyr-nuxt-module
- Affected packages:
- nuxt @ 0.10.7 (+224 more)