Vulnerability 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 Score
HIGH
Related Weaknesses (CWE)
References
- 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
FAQ
What is CVE-2026-23538?
CVE-2026-23538 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 lar...
How severe is CVE-2026-23538?
CVE-2026-23538 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-23538?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.