CVE-2026-47220

A flaw was found in Envoy. A remote attacker can exploit this vulnerability by sending a request with a missing host header when the %REQUESTEDSERVERNAMEX:Y% is used in the log format and host-related options, such as HOSTFIRST or SNIFIRST, are specified. This can lead to a crash of the Envoy...

Origin Validation Error

Overview Glances is an A cross-platform curses-based monitoring tool Affected versions of this package are vulnerable to Origin Validation Error in the REST/WebUI FastAPI application due to the lack of host header validation and the absence of an allowlist for trusted hosts. An attacker can gain...

Monkey HTTP Daemon 0.x - Missing Host Field Denial of Service

source: https://www.securityfocus.com/bid/9642/info Monkey HTTP Daemon is prone to a denial of service attacks. HTTP GET requests, which do not include a 'Host' header field, will trigger this condition. The server will need to be restarted to regain normal functionality...