CVE Watch8 oct 2026

CVE-2026-107227

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2

CVSS

7.5

Alto

EPSS

0.4%

p36

KEV

—

Exploit Today

0-100

Publicado: 7 oct 2026 · Última mod.: 8 oct 2026 · CWE-400 · CWE-409

EPSS · 30d

0.4%EPSS · 30 días0.4%

2026-10-082026-10-23

Descripción técnica

The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses. From 2.2.0 until 3.0.14, WebSocket permessage-deflate decompression is unbounded when compression is enabled. The inbound pipeline aggregates compressed frames before WebSocketClientCompressionHandler inflates them, so webSocketMaxFrameSize and webSocketMaxBufferSize do not bound decompressed output. A malicious WebSocket peer can send a small compressed message that expands to a very large Netty buffer and exhausts JVM heap. This issue is fixed in version 3.0.14.

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