CVE-2026-45736

{"id": "CVE-2026-45736", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.4, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "HIGH", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 0.7}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2026-05-15T15:16:54.103", "references": [{"url": "https://github.com/websockets/ws/commit/c0327ec15a54d701eb6ccefaa8bef328cfc03086", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpx", "tags": ["Exploit", "Patch", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/websockets/ws/security/advisories/GHSA-58qx-3vcg-4xpx", "tags": ["Exploit", "Patch", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-908"}]}], "descriptions": [{"lang": "en", "value": "ws is an open source WebSocket client and server for Node.js. Prior to 8.20.1, the websocket.close() implementation is vulnerable to uninitialized memory disclosure when a TypedArray is passed as the reason argument. This vulnerability is fixed in 8.20.1."}], "lastModified": "2026-05-19T14:39:20.353", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:ws_project:ws:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "110AA5C6-9CD2-4431-BB18-B048FEBD7141", "versionEndExcluding": "8.20.1", "versionStartIncluding": "8.0.0"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}