EUVD-2026-38378
GHSA-g898-grjx-8jm3
Severity by source
CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable open redirect requiring passive user interaction; scope changes to attacker origin enabling OAuth code theft; no privileges required and no availability impact.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
CVSS: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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Lifecycle Timeline
2DescriptionCVE.org
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.
AnalysisAI
Open redirect in Nuxt 3.x before 3.21.7 and 4.x before 4.4.7 allows remote unauthenticated attackers to redirect victims to arbitrary external hosts by supplying protocol-relative paths such as //evil.com to the reloadNuxtApp composable. The function's only security gate checks whether the resolved URL's scheme is a script protocol; protocol-relative paths inherit the page's own scheme (https:), pass that check, and are then written directly to window.location.href. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the target Nuxt application accepts user-controlled input - such as a query parameter, path segment, or POST body field - and passes that value, with no additional host validation, into the `path` option of `reloadNuxtApp`. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.3 (Medium) is appropriate: network-reachable (AV:N), low complexity (AC:L), no privileges required (PR:N), but passive user interaction needed (UI:P). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker identifies a Nuxt application that accepts a `?redirect=` query parameter on its login or post-OAuth callback route and passes that value directly into `reloadNuxtApp({ path: redirectParam })`. The attacker sends a crafted link such as `https://app.example.com/login?redirect=//attacker.io` to the victim; the victim logs in, the application calls `reloadNuxtApp` with `//attacker.io`, the protocol-relative path passes the script-protocol check, and the browser silently navigates to `https://attacker.io`. … |
| Remediation | Upgrade to Nuxt 4.4.7 (for the 4.x series) or Nuxt 3.21.7 (for the 3.x series); these versions are confirmed as fixed by the npm package advisories in GHSA-c9cv-mq2m-ppp3 (https://github.com/nuxt/nuxt/security/advisories/GHSA-c9cv-mq2m-ppp3) and by the patch commits e447a793c47766834f7497f8412a76cd56fd8ee1 and 6497d99dd106254abd089f6a263d7773869a343b. … Detailed patch versions, workarounds, and compensating controls in full report. |
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