CVE-2026-23538 HIGH

Description

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.

Details

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

• • access.redhat.com/security/cve/CVE-2026-23538
• • bugzilla.redhat.com/show_bug.cgi
• • github.com/red-hat-data-services/feast/pull/192
• • security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23538.json