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{"bugzilla": {"description": "undici: undici: Denial of Service via failed HTTP/2 WebSocket handshake", "id": "2553103", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2553103"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-248", "details": ["A flaw was found in undici. A malicious remote server can cause a Denial of Service (DoS) by returning an invalid handshake response when a client attempts to establish a WebSocket connection over HTTP/2. The client mishandles the failed connection setup and leaves the underlying network stream open without an error handler. 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["https://www.cve.org/CVERecord?id=CVE-2026-109855\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-109855\nhttps://cna.openjsf.org/security-advisories.html\nhttps://github.com/nodejs/undici/security/advisories/GHSA-qq8j-7v2v-3rwp"], "threat_severity": "Important"}

{}