CVE-2026-56697: Nuxt

Medium severity, CVSS 6.1. EPSS: 0.3% chance of exploitation in the next 30 days.

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 the reloadNuxtApp function; these pass the script-protocol check but resolve to a cross-origin URL against the current page protocol. Attackers can inject paths like //evil.com to redirect users to attacker-controlled hosts, enabling phishing and OAuth authorization-code theft.

Affected products

• Nuxt Nuxt: from 3.0.0, before 3.21.7 (fixed in 3.21.7); from 4.0.0, before 4.4.7 (fixed in 4.4.7)

Published 2026-06-22. Last modified 2026-06-25.