What is CVE-2026-23538?

CVE-2026-23538 is a high-severity vulnerability in Feast Feature Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-16.

How severe is CVE-2026-23538?

High severity. CVSS v3 base score is 7.5 out of 10.

Resource exhaustion in Feast Feature Server

CVE-2026-23538

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…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Feast Feature Server — versions 0
Red Hat Openshift Ai (Rhoai)

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)
secalert@redhat.com
0b0ca135-0b70-47e7-9f44-1890c2a1c46c

Frequently asked questions

What is CVE-2026-23538?: CVE-2026-23538 is a high-severity vulnerability in Feast Feature Server, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-07-16.
How severe is CVE-2026-23538?: High severity. CVSS v3 base score is 7.5 out of 10.