Bug 2429311 (CVE-2026-23538)

Summary: CVE-2026-23538 feast: Resource exhaustion via WebSocket endpoint
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: jkoehler, lphiri, security-response-team
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
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Doc Text:
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.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Deadline: 2026-03-21   

Description OSIDB Bzimport 2026-01-13 19:48:22 UTC
Unauthenticated WebSocket endpoint in Feast Feature Server allows remote attackers to establish persistent connections without authentication, enabling resource exhaustion and potential information disclosure. Version affected: <= 0.58.0.