https://vulnerability.circl.lu/rss/recent/all/10 Most recent entries from all 2026-10-06T14:09:18.121989+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent entries. https://vulnerability.circl.lu/vuln/cve-2026-63495 CVE-2026-63495 — Libevent: Unbounded memory accumulation in WebSocket server via fragmented frames 2026-10-06T14:09:19.033674+00:00

Affected: libevent

Libevent is an event notification library. From 2.2.0-alpha-dev until 2.2.2-alpha, the libevent WebSocket server in ws.c accumulates fragmented frames in evws->incomplete_frames without enforcing a total message-size limit. An unauthenticated remote client can repeatedly send fragmented WebSocket frames below WS_MAX_RECV_FRAME_SZ with FIN=0, causing the evbuffer to grow without bound until the process or host exhausts memory. This issue is fixed in version 2.2.2-alpha.