{"id":"CVE-2026-56326","sourceIdentifier":"disclosure@vulncheck.com","published":"2026-06-22T22:16:52.207","lastModified":"2026-10-25T23:10:00.167","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Las versiones de Nuxt 4.0.0 anteriores a la 4.4.7 y 3.x anteriores a la 3.21.7 contienen una vulnerabilidad de redirección abierta del lado del servidor en navigateTo que no valida correctamente las cargas útiles normalizadas por ruta como /.. / /evil.com y /.//evil.com. Los atacantes pueden eludir las comprobaciones de host externo utilizando técnicas de normalización de rutas para redirigir a los usuarios a sitios controlados por el atacante a través del encabezado Location o meta-refresh, lo que permite el phishing y el robo de códigos de autorización de OAuth."}],"affected":[{"source":"disclosure@vulncheck.com","affectedData":[{"vendor":"Nuxt","product":"Nuxt","defaultStatus":"unaffected","packageURL":"pkg:npm/nuxt","versions":[{"version":"4.0.0","lessThan":"4.4.7","versionType":"semver","status":"affected"},{"version":"4.4.7","versionType":"semver","status":"unaffected"}]},{"vendor":"Nuxt","product":"Nuxt","defaultStatus":"unaffected","packageURL":"pkg:npm/nuxt","versions":[{"version":"0","lessThan":"3.21.7","versionType":"semver","status":"affected"},{"version":"3.21.7","versionType":"semver","status":"unaffected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"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","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"LOW","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"disclosure@vulncheck.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":2.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-06-23T12:12:07.872599Z","id":"CVE-2026-56326","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"disclosure@vulncheck.com","type":"Secondary","description":[{"lang":"en","value":"CWE-601"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*","versionStartIncluding":"3.0.0","versionEndExcluding":"3.21.7","matchCriteriaId":"FB921816-DB1C-43CD-A4BA-560E13018B10"},{"vulnerable":true,"criteria":"cpe:2.3:a:nuxt:nuxt:*:*:*:*:*:*:*:*","versionStartIncluding":"4.0.0","versionEndExcluding":"4.4.7","matchCriteriaId":"5593E9B8-6F06-4319-B88F-10AA250EA551"}]}]}],"references":[{"url":"https://github.com/nuxt/nuxt/commit/1f2dd5e78c77576437138e97671965573c232835","source":"disclosure@vulncheck.com","tags":["Patch"]},{"url":"https://github.com/nuxt/nuxt/commit/2cce6fb02e621196d56df92e05594e07469b5a6d","source":"disclosure@vulncheck.com","tags":["Patch"]},{"url":"https://github.com/nuxt/nuxt/security/advisories/GHSA-c9cv-mq2m-ppp3","source":"disclosure@vulncheck.com","tags":["Third Party Advisory"]},{"url":"https://www.vulncheck.com/advisories/nuxt-server-side-open-redirect-via-path-normalization-bypass-in-navigateto","source":"disclosure@vulncheck.com","tags":["Third Party Advisory"]}]}