{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-112949","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-10-19T21:30:47.245Z","datePublished":"2026-10-20T15:19:03.799Z","dateUpdated":"2026-10-23T01:42:51.858Z"},"containers":{"cna":{"title":"Vitest: Code injection via unauthenticated manual mock registration","problemTypes":[{"descriptions":[{"cweId":"CWE-94","lang":"en","description":"CWE-94: Improper Control of Generation of Code ('Code Injection')","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-116","lang":"en","description":"CWE-116: Improper Encoding or Escaping of Output","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-306","lang":"en","description":"CWE-306: Missing Authentication for Critical Function","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/vitest-dev/vitest/security/advisories/GHSA-qxg6-89mg-rqv8","tags":["x_refsource_CONFIRM"],"url":"https://github.com/vitest-dev/vitest/security/advisories/GHSA-qxg6-89mg-rqv8"},{"name":"https://github.com/vitest-dev/vitest/commit/15cc006aa9f8683dc5f7e895d011fa7dc751ce35","tags":["x_refsource_MISC"],"url":"https://github.com/vitest-dev/vitest/commit/15cc006aa9f8683dc5f7e895d011fa7dc751ce35"},{"name":"https://github.com/vitest-dev/vitest/commit/b825313243dc55757e8d7c0f9e7a792135e13473","tags":["x_refsource_MISC"],"url":"https://github.com/vitest-dev/vitest/commit/b825313243dc55757e8d7c0f9e7a792135e13473"},{"name":"https://github.com/vitest-dev/vitest/releases/tag/v4.1.12","tags":["x_refsource_MISC"],"url":"https://github.com/vitest-dev/vitest/releases/tag/v4.1.12"},{"name":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.3","tags":["x_refsource_MISC"],"url":"https://github.com/vitest-dev/vitest/releases/tag/v5.0.3"}],"affected":[{"vendor":"vitest-dev","product":"vitest","versions":[{"version":">= 2.1.0-beta.7, < 4.1.12","status":"affected"},{"version":">= 5.0.0, < 5.0.3","status":"affected"}]},{"vendor":"@vitest","product":"mocker","versions":[{"version":">= 2.1.0-beta.7, < 4.1.12","status":"affected"},{"version":">= 5.0.0, < 5.0.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-20T15:19:03.799Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-qxg6-89mg-rqv8","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/vitest-dev/vitest/security/advisories/GHSA-qxg6-89mg-rqv8","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-23T01:42:18.590758Z","id":"CVE-2026-112949","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":"2026-10-23T01:42:51.858Z"}}]}}