CVE-2026-119201

Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, nuxt dev stores a generated appSecret in <buildDir>/app-secret, by default .nuxt/app-secret, within a directory allowed by Vite's server.fs configuration. A client with direct HTTP access to an exposed development server can fetch the file, use deriveSecret() to compute derived secrets such as the default useSession password, and forge session cookies accepted by that development server. The default localhost binding limits remote exposure, cross-origin browser reads are blocked, production builds and development servers with an explicitly configured appSecret are not affected. This issue is fixed in version 4.6.3.

CVSS v3 4.8 MEDIUM

4.8^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/nuxt/nuxt/commit/2981290f36d9c5412c022758f3d89ba21a845308
https://github.com/nuxt/nuxt/commit/545004cc350be7003dea4116ce6206d6f980b1fd
https://github.com/nuxt/nuxt/releases/tag/v4.6.3
https://github.com/nuxt/nuxt/security/advisories/GHSA-3xf4-9g3c-4h4w

Configurations

No configuration.

History

29 Oct 2026, 21:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-29 21:17

Updated : 2026-10-30 17:18

NVD link : CVE-2026-119201

Mitre link : CVE-2026-119201

CVE.ORG link : CVE-2026-119201

JSON object : View

Products Affected

No product.

CWE

CWE-552

Files or Directories Accessible to External Parties

{"id": "CVE-2026-119201", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-119201", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-30T15:20:40.211444Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "LOW"}, "impactScore": 2.5, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "nuxt", "product": "nuxt", "versions": [{"status": "affected", "version": ">= 4.6.0, < 4.6.3"}]}]}], "published": "2026-10-29T21:17:19.077", "references": [{"url": "https://github.com/nuxt/nuxt/commit/2981290f36d9c5412c022758f3d89ba21a845308", "source": "security-advisories@github.com"}, {"url": "https://github.com/nuxt/nuxt/commit/545004cc350be7003dea4116ce6206d6f980b1fd", "source": "security-advisories@github.com"}, {"url": "https://github.com/nuxt/nuxt/releases/tag/v4.6.3", "source": "security-advisories@github.com"}, {"url": "https://github.com/nuxt/nuxt/security/advisories/GHSA-3xf4-9g3c-4h4w", "source": "security-advisories@github.com"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-552"}]}], "descriptions": [{"lang": "en", "value": "Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, nuxt dev stores a generated appSecret in <buildDir>/app-secret, by default .nuxt/app-secret, within a directory allowed by Vite's server.fs configuration. A client with direct HTTP access to an exposed development server can fetch the file, use deriveSecret() to compute derived secrets such as the default useSession password, and forge session cookies accepted by that development server. The default localhost binding limits remote exposure, cross-origin browser reads are blocked, production builds and development servers with an explicitly configured appSecret are not affected. This issue is fixed in version 4.6.3."}], "lastModified": "2026-10-30T17:18:03.880", "sourceIdentifier": "security-advisories@github.com"}