EUVD-2026-38375Severity 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-accessible with no privileges required; user must click a crafted link; scope changes as redirect impacts a cross-origin system receiving stolen credentials.
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 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.
AnalysisAI
Server-side open redirect in Nuxt's navigateTo composable allows unauthenticated network attackers to bypass external-host checks by submitting path-normalized payloads such as /..//evil.com or /.//evil.com, which WHATWG URL parsing resolves to the protocol-relative URL //evil.com. Affected versions are Nuxt 4.0.0-4.4.6 and all 3.x releases before 3.21.7. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the target Nuxt application to forward user-controlled input - such as a query parameter like `?next=`, `?redirect=`, or `?return_to=` - directly into the `navigateTo` function during server-side rendering without independent path sanitization. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.3 with vector AV:N/AC:L/AT:N/PR:N/UI:P reflects a medium-severity, network-exploitable issue requiring passive user interaction (a victim must follow a crafted link), with limited confidentiality and integrity impacts (VC:L/VI:L). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker crafts a phishing email or message containing a login URL for a Nuxt application with a redirect parameter such as `?next=/..//evil.com`. When a victim clicks the link and completes authentication, the server-side `navigateTo` function processes the unvalidated parameter; WHATWG URL parsing normalizes `/..//evil.com` to `//evil.com`, and the server issues an HTTP response with `Location: //evil.com` or a `<meta http-equiv='refresh' content='0; url=//evil.com'>` tag. … |
| Remediation | Upgrade the `nuxt` npm package to version 4.4.7 (for 4.x projects) or 3.21.7 (for 3.x projects); these are the vendor-confirmed fixed releases per GHSA-c9cv-mq2m-ppp3. … Detailed patch versions, workarounds, and compensating controls in full report. |
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