medium5.4
CVE-2026-45669
Nuxt is an open-source web development framework for Vue.js.
Impact
Nuxt is an open-source web development framework for Vue.js. From versions 3.4.3 to before 3.21.6 and 4.0.0-alpha.1 to before 4.4.6, navigateTo() with external: true generates a server-side HTML redirect body containing a <meta http-equiv="refresh"> tag. The destination URL is only sanitized by replacing " with %22, leaving <, >, &, and ' unencoded. An attacker who can influence the URL passed to navigateTo(url, { external: true }) can break out of the content="…" attribute and inject arbitrary HTML/JavaScript that executes under the application's origin. This issue has been patched in versions 3.21.6 and 4.4.6.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| npm | nuxt | >= 3.4.3, <= 3.21.5 | 3.21.6 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Nuxt | Nuxt | from 3.4.3 before 3.21.6 from 4.0.0 before 4.4.6 |