CVE-2026-93558

HIGHCVSS 7.5

A flaw was found in Netty's WebSocketServerExtensionHandler. A remote, unauthenticated attacker can exploit this vulnerability by using HTTP/1.1 pipelining to send requests faster than the application can respond. This leads to an unbounded growth of a per-connection queue, consuming excessive memory. Eventually, this can cause the Java Virtual Machine (JVM) to exhaust its heap, resulting in a Denial of Service (DoS) for the affected server.

Published 2026-09-18 · last modified 2026-09-18

Full record at NVD ↗

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Ncerio by BeyondNets · data from NVD, CISA KEV, EPSS.