CVE Watch15 jul 2026

CVE-2026-33871

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, a remote user can

CVSS

7.5

Alto

EPSS

1.1%

p63

KEV

—

Exploit Today

0-100

Publicado: 27 mar 2026 · Última mod.: 15 jul 2026 · CWE-770

EPSS · 30d

1.1%EPSS · 30 días1.1%

2026-06-302026-07-16

Descripción técnica

Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.132.Final and 4.2.10.Final, a remote user can trigger a Denial of Service (DoS) against a Netty HTTP/2 server by sending a flood of `CONTINUATION` frames. The server's lack of a limit on the number of `CONTINUATION` frames, combined with a bypass of existing size-based mitigations using zero-byte frames, allows an user to cause excessive CPU consumption with minimal bandwidth, rendering the server unresponsive. Versions 4.1.132.Final and 4.2.10.Final fix the issue.

Referencias oficiales

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