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, an attacker can exhaust server resources—such as memory, CPU, and file descriptors—leading to a complete denial of service for legitimate users.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
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

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-16 01:16

Updated : 2026-07-16 14:16

NVD link : CVE-2026-23538

Mitre link : CVE-2026-23538

CVE.ORG link : CVE-2026-23538

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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"descriptions": [{"lang": "en", "value": "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\u2014such as memory, CPU, and file descriptors\u2014leading to a complete denial of service for legitimate users."}], "lastModified": "2026-07-16T14:16:49.493", "sourceIdentifier": "secalert@redhat.com"}