HIGH 7.5 NVD
CVE-2026-15565
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
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.
References
- https://access.redhat.com/security/cve/CVE-2026-15565
- https://bugzilla.redhat.com/show_bug.cgi?id=2490628
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-08-11 via NVD.
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