cvedb.io
CVE-2026-15565
HIGH · CVSS 7.5
EPSS exploitation probability: 0%
Published 2026-08-11T09:17:13.370 · Last modified 2026-08-11T09:17:13.370

Summary

A flaw was found in Undertow. A remote attacker can cause Out of Memory on websockets endpoint without authentication on any @ServerEndpoint class that has any @OnMessage method. This allows an attacker to cause Denial of Service attack without authentication and using only a standard WebSocket handshake.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.