CVE-2026-12151
undici undici, Cryostat 4 on RHEL 9, Red Hat Enterprise Linux 10 취약점
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 validation, collectively causing unbounded memory growth in the client process. The result is memory exhaustion and a denial of service. Affected applications are those using the undici WebSocket client (new WebSocket(...)) or the WebSocketStream API that can be induced to connect to an attacker-con...
- 대응 우선순위
- 점검
- CVSS
- 7.5
- EPSS
- 0.79% 백분위 52.7% · 2026.08.03 기준
- CISA KEV
- 미등록
- 조치 기한
- -
- 공개일
- 2026.06.18