This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2026-93558 →
Categories
DEBIAN-CVE-2026-93558

A flaw was found in Netty's WebSocketServerExtensionHandler. A remote, unauthenticated attacker can exploit this vulnerability by using HTTP/1.1 pipel...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 netty
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13 netty
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:14 netty
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]

References

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