{"id":"CVE-2026-112949","revision":"dc613ce6c40c4fce84dcdcbc043a5ad3","records":[{"revision":"dc613ce6c40c4fce84dcdcbc043a5ad3","observedAt":"2026-10-25T05:17:13.11+00:00","statement":{"source":"nvd","id":"CVE-2026-112949","aliases":[],"title":"Vitest is a Vite-native testing framework for JavaScript and TypeScript projects. From 2.1.0-beta.7 until 4.1.12 and 5.0.3, an unauthenticated non-browser WebSocket client that can reach a development server using interceptorPlugin can regi…","description":"Vitest is a Vite-native testing framework for JavaScript and TypeScript projects. From 2.1.0-beta.7 until 4.1.12 and 5.0.3, an unauthenticated non-browser WebSocket client that can reach a development server using interceptorPlugin can register a manual mock whose attacker-controlled url createManualModuleSource inserts unescaped into generated module source. When the developer browser loads the affected module, attacker-controlled JavaScript executes on the development-server origin. This issue is fixed in versions 4.1.12 and 5.0.3.","state":0,"publishedAt":"2026-10-20T16:17:05.66+00:00","modifiedAt":"2026-10-23T02:16:54.907+00:00","affected":[],"metrics":[{"system":"CVSS 3.1 · security-advisories@github.com · Secondary","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","score":4.7,"severity":"MEDIUM"}],"references":["https://github.com/vitest-dev/vitest/commit/15cc006aa9f8683dc5f7e895d011fa7dc751ce35","https://github.com/vitest-dev/vitest/commit/b825313243dc55757e8d7c0f9e7a792135e13473","https://github.com/vitest-dev/vitest/releases/tag/v4.1.12","https://github.com/vitest-dev/vitest/releases/tag/v5.0.3","https://github.com/vitest-dev/vitest/security/advisories/GHSA-qxg6-89mg-rqv8"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-112949","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Awaiting Analysis","weaknesses":["CWE-94","CWE-116","CWE-306"],"productCriteria":[],"sourceDates":{"published":"2026-10-20T16:17:05.660","lastModified":"2026-10-23T02:16:54.907"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-112949","identifiers":["CVE-2026-112949"]},"retained":false,"historicalAffected":[]}],"coverage":[]}