CVE-2026-56326
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.
Does this matter?
Lower severity and a low EPSS score (0.36%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 4.0
- 5.3 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.36% probability · 30th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-601
- Affected
- nuxt/nuxt
- Source
- disclosure@vulncheck.com
References
- https://github.com/nuxt/nuxt/commit/1f2dd5e78c77576437138e97671965573c232835Patch
- https://github.com/nuxt/nuxt/commit/2cce6fb02e621196d56df92e05594e07469b5a6dPatch
- https://github.com/nuxt/nuxt/security/advisories/GHSA-c9cv-mq2m-ppp3Third Party Advisory
- https://www.vulncheck.com/advisories/nuxt-server-side-open-redirect-via-path-normalization-bypass-in-navigatetoThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.