CVE-2026-16632 boazsegev facil.io WebSocket Frame websocket_parser.h websocket_on_protocol_error input validation

A flaw has been found in boazsegev facil.io up to 0.7.4. Affected is the function websocketonprotocolerror in the library lib/facil/http/parsers/websocketparser.h of the component WebSocket Frame Parser. This manipulation of the argument onmessage causes improper input validation. The attack can ...