NPM: undici WebSocket client vulnerable to denial of service via fragment count bypass

NPM: undici WebSocket client vulnerable to denial of service via fragment count bypass vulnerability discovered by ? in WordPress Npm undici versions 6.27.0...

undici WebSocket client vulnerable to denial of service via fragment count bypass

Impact The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream many small or empty continuation frames that each pass per-frame and cumulative-size...

CVE-2026-12151 undici WebSocket client vulnerable to denial of service via fragment count bypass

Impact: The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream many small or empty continuation frames that each pass per-frame and cumulative-size...

CVE-2026-12151 undici WebSocket client vulnerable to denial of service via fragment count bypass

Impact: The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream many small or empty continuation frames that each pass per-frame and cumulative-size...

CVE-2026-12151 undici WebSocket client vulnerable to denial of service via fragment count bypass

Impact: The undici WebSocket client enforces maxPayloadSize on the cumulative byte count of fragments in a message but does not enforce a limit on the number of fragments. A malicious WebSocket server can stream many small or empty continuation frames that each pass per-frame and cumulative-size...