{"id":"CVE-2026-112949","revision":"3d1fdb5ca8c14c59843d64e454441123","records":[{"revision":"3d1fdb5ca8c14c59843d64e454441123","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-112949","aliases":[],"title":"Vitest: Code injection via unauthenticated manual mock registration","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":"2026-10-20T15:19:03.799+00:00","modifiedAt":"2026-10-20T15:19:03.799+00:00","affected":[{"ecosystem":"Vendor product","name":"vitest","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"vitest-dev\",\n                    \"product\": \"vitest\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.1.0-beta.7, < 4.1.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 5.0.0, < 5.0.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"mocker","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"@vitest\",\n                    \"product\": \"mocker\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.1.0-beta.7, < 4.1.12\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 5.0.0, < 5.0.3\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","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/security/advisories/GHSA-qxg6-89mg-rqv8","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"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112949","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-112949","identifiers":["CVE-2026-112949"]},"retained":false,"historicalAffected":[]}],"coverage":[]}