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CVE-2026-23538
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.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HReferences
- 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
- https://access.redhat.com/security/cve/CVE-2026-23538
- https://bugzilla.redhat.com/show_bug.cgi?id=2429311
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23538.json