VulnSocial

CVE-2026-107227

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-400CWE-409

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-08: 110-08
Referenced assets1 URL
Full discourse1 post
  • DailyCVE@dailycve

    🔴 AsyncHttpClient, Unbounded WebSocket permessage-deflate Decompression, #CVE-2026-107227 (High) -DC-Oct2026-2930 https://dailycve.com/asynchttpclient-unbounded-websocket-permessage-deflate-decompression-cve-2026-107227-high-dc-oct2026-2930/

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    239 followersView on X

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