{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45670", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-12T21:59:25.666Z", "datePublished": "2026-06-12T12:51:16.156Z", "dateUpdated": "2026-06-12T14:18:09.794Z"}, "containers": {"cna": {"title": "Nuxt: Dev server exposes built source over LAN to malicious sites (incomplete fix for GHSA-4gf7-ff8x-hq99)", "problemTypes": [{"descriptions": [{"cweId": "CWE-749", "lang": "en", "description": "CWE-749: Exposed Dangerous Method or Function", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "ADJACENT", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 5.9, "baseSeverity": "MEDIUM", "vectorString": "CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g"}, {"name": "https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99", "tags": ["x_refsource_MISC"], "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99"}, {"name": "https://github.com/nuxt/nuxt/pull/35051", "tags": ["x_refsource_MISC"], "url": "https://github.com/nuxt/nuxt/pull/35051"}], "affected": [{"vendor": "nuxt", "product": "nuxt", "versions": [{"version": ">= 3.15.4, < 3.21.6", "status": "affected"}, {"version": ">= 4.0.0-alpha.1, < 4.4.6", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-12T12:51:16.156Z"}, "descriptions": [{"lang": "en", "value": "Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack / rspack builder if the dev server is bound to a non-loopback address (e.g. nuxt dev --host) and the developer opens a malicious site on the same network. This issue has been patched in versions 3.21.6 and 4.4.6."}], "source": {"advisory": "GHSA-6m52-m754-pw2g", "discovery": "UNKNOWN"}}, "adp": [{"references": [{"url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g", "tags": ["exploit"]}, {"url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99", "tags": ["exploit"]}], "metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-06-12T14:17:53.380369Z", "id": "CVE-2026-45670", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-12T14:18:09.794Z"}}]}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "Nuxt is an open-source web development framework for Vue.js. In @nuxt/rspack-builder and @nuxt/webpack-builder versions 3.15.4 to before 3.21.6, and 4.0.0-alpha.1 to before 4.4.6, there is an incomplete fix for GHSA-4gf7-ff8x-hq99. Source code may be stolen during dev when using the webpack / rspack builder if the dev server is bound to a non-loopback address (e.g. nuxt dev --host) and the developer opens a malicious site on the same network. This issue has been patched in versions 3.21.6 and 4.4.6."}], "id": "CVE-2026-45670", "lastModified": "2026-06-12T14:16:31.443", "metrics": {"cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "attackVector": "ADJACENT", "availabilityRequirement": "NOT_DEFINED", "baseScore": 5.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "NONE", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "PASSIVE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/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", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-06-12T14:16:31.443", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/nuxt/nuxt/pull/35051"}, {"source": "security-advisories@github.com", "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-4gf7-ff8x-hq99"}, {"source": "security-advisories@github.com", "url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-6m52-m754-pw2g"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-749"}], "source": "security-advisories@github.com", "type": "Primary"}]}

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