{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-114133", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-10-20T21:53:58.473Z", "datePublished": "2026-10-21T17:52:09.381Z", "dateUpdated": "2026-10-21T17:53:26.503Z"}, "containers": {"cna": {"title": "Nuxt server islands render `useHeadSafe` input without sanitisation", "problemTypes": [{"descriptions": [{"cweId": "CWE-79", "lang": "en", "description": "CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/nuxt/nuxt/security/advisories/GHSA-xfq5-w38q-pc2x", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-xfq5-w38q-pc2x"}, {"name": "https://github.com/nuxt/nuxt/commit/493565e99451a0f52330b1f6b979254a4a39e5d0", "tags": ["x_refsource_MISC"], "url": "https://github.com/nuxt/nuxt/commit/493565e99451a0f52330b1f6b979254a4a39e5d0"}, {"name": "https://github.com/nuxt/nuxt/releases/tag/v4.6.2", "tags": ["x_refsource_MISC"], "url": "https://github.com/nuxt/nuxt/releases/tag/v4.6.2"}], "affected": [{"vendor": "nuxt", "product": "nuxt", "versions": [{"version": ">= 3.13.0, < 4.6.2", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-21T17:53:26.503Z"}, "descriptions": [{"lang": "en", "value": "Nuxt is an open-source web development framework for Vue.js. From 3.13.0 until 4.6.2, the server-island renderer serializes raw useHeadSafe entry input into the island response without preserving the safe-input marker, and NuxtIsland later inserts that input into the page head as an ordinary entry. An application that passes attacker-controlled data to useHeadSafe in a .server.vue component or page, or in a component rendered through NuxtIsland, can therefore render values normally removed by the allowlist, including event-handler attributes or executable script content, resulting in stored cross-site scripting in the application origin. This issue is fixed in version 4.6.2 ."}], "source": {"advisory": "GHSA-xfq5-w38q-pc2x", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "nuxt", "vendor": "nuxt", "versions": [{"status": "affected", "version": ">= 3.13.0, < 4.6.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Nuxt is an open-source web development framework for Vue.js. From 3.13.0 until 4.6.2, the server-island renderer serializes raw useHeadSafe entry input into the island response without preserving the safe-input marker, and NuxtIsland later inserts that input into the page head as an ordinary entry. An application that passes attacker-controlled data to useHeadSafe in a .server.vue component or page, or in a component rendered through NuxtIsland, can therefore render values normally removed by the allowlist, including event-handler attributes or executable script content, resulting in stored cross-site scripting in the application origin. This issue is fixed in version 4.6.2 ."}], "id": "CVE-2026-114133", "lastModified": "2026-10-21T18:17:26.260", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 5.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 2.3, "impactScore": 2.7, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-10-21T18:17:26.260", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nuxt/nuxt/commit/493565e99451a0f52330b1f6b979254a4a39e5d0"}, {"source": "security-advisories@github.com", "url": "https://github.com/nuxt/nuxt/releases/tag/v4.6.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-xfq5-w38q-pc2x"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-79"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}