CVE-2026-23538

Impact

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.

Affected packages

This record carries no package version data, so it cannot be matched against a dependency list automatically. Read the advisory and compare your version by hand.

Weakness classification

References

• NVD record
• CVE.org record
• 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