CVE-2026-56326

Description

Nuxt versions 4.0.0 before 4.4.7 and 3.x before 3.21.7 contain a server-side open redirect vulnerability in navigateTo that fails to properly validate path-normalized payloads like /..//evil.com and /.//evil.com. Attackers can bypass external-host checks using path-normalization techniques to redirect users to attacker-controlled sites via the Location header or meta-refresh, enabling phishing and OAuth authorization-code theft.

References

• https://github.com/nuxt/nuxt/commit/1f2dd5e78c77576437138e97671965573c232835
• https://github.com/nuxt/nuxt/commit/2cce6fb02e621196d56df92e05594e07469b5a6d
• https://github.com/nuxt/nuxt/security/advisories/GHSA-c9cv-mq2m-ppp3
• https://www.vulncheck.com/advisories/nuxt-server-side-open-redirect-via-path-normalization-bypass-in-navigateto