CVE-2026-112950

{"id": "CVE-2026-112950", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-112950", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-10-28T14:04:50.974371Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.9, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.2}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "vitest-dev", "product": "vitest", "versions": [{"status": "affected", "version": ">= 4.1.11, < 4.1.12"}, {"status": "affected", "version": ">= 5.0.0-rc.2, < 5.0.3"}]}, {"vendor": "@vitest", "product": "mocker", "versions": [{"status": "affected", "version": ">= 4.1.11, < 4.1.12"}, {"status": "affected", "version": ">= 5.0.0-rc.2, < 5.0.3"}]}]}], "published": "2026-10-20T16:17:05.807", "references": [{"url": "https://github.com/vitest-dev/vitest/commit/15cc006aa9f8683dc5f7e895d011fa7dc751ce35", "source": "security-advisories@github.com"}, {"url": "https://github.com/vitest-dev/vitest/commit/b825313243dc55757e8d7c0f9e7a792135e13473", "source": "security-advisories@github.com"}, {"url": "https://github.com/vitest-dev/vitest/releases/tag/v4.1.12", "source": "security-advisories@github.com"}, {"url": "https://github.com/vitest-dev/vitest/releases/tag/v5.0.3", "source": "security-advisories@github.com"}, {"url": "https://github.com/vitest-dev/vitest/security/advisories/GHSA-xp26-3454-mjgp", "source": "security-advisories@github.com"}, {"url": "https://github.com/vitest-dev/vitest/security/advisories/GHSA-xp26-3454-mjgp", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Awaiting Analysis", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-22"}]}], "descriptions": [{"lang": "en", "value": "Vitest is a Vite-native testing framework for JavaScript and TypeScript projects. From 4.1.11 until 4.1.12 and 5.0.3, isFileLoadingAllowed and the filesystem read interpret backslashes differently on Windows in packages/mocker/src/node/interceptorPlugin.ts. When a client can reach the Vite dev server on Windows and register a redirect mock containing backslash traversal, POSIX joining preserves a Windows backslash traversal that the later filesystem read interprets as a path separator, so the client can read a file outside server.fs.allow that the Vitest process can access. This issue is fixed in versions 4.1.12 and 5.0.3."}], "lastModified": "2026-10-28T14:16:56.487", "sourceIdentifier": "security-advisories@github.com"}