CVE-2026-112949
mediumVitest is a Vite-native testing framework for JavaScript and TypeScript projects.
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/vitest-dev/vitest/commit/15cc006aa9f8683dc5f7e895d011fa7dc751ce35 security-advisories@github.com
- https://github.com/vitest-dev/vitest/commit/b825313243dc55757e8d7c0f9e7a792135e13473 security-advisories@github.com
- https://github.com/vitest-dev/vitest/releases/tag/v4.1.12 security-advisories@github.com
- https://github.com/vitest-dev/vitest/releases/tag/v5.0.3 security-advisories@github.com
- https://github.com/vitest-dev/vitest/security/advisories/GHSA-qxg6-89mg-rqv8 security-advisories@github.com
- https://github.com/vitest-dev/vitest/security/advisories/GHSA-qxg6-89mg-rqv8 134c704f-9b21-4f2e-91b3-4a467353bcc0