A vulnerability was identified in the Feast Feature Server's `/ws/chat` endpoint that allows remote attackers to establish persistent WebSocket connections without any authentication. By opening a large number of simultaneous connections, an attacker can exhaust server resources—such as memory, CPU, and file descriptors—leading to a complete denial of service for legitimate users.

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770

https://access.redhat.com/security/cve/CVE-2026-23538

https://bugzilla.redhat.com/show_bug.cgi?id=2429311

https://github.com/red-hat-data-services/feast/pull/192

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