CVE-2026-56816 (GCVE-0-2026-56816)
Vulnerability from cvelistv5
Published
2026-07-21 21:56
Modified
2026-07-22 18:24
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Summary
Netty is a network application framework for development of protocol servers and clients. Prior to 4.2.16.Final, Netty's `Http3FrameCodec` buffers incoming data for HTTP/3 reserved frame types up to the wire-specified payload length without limits; `decodeFrame` trusts `payLoadLength`, allowing an attacker to open multiple QUIC streams and send reserved frames with very large payload lengths to cause memory exhaustion and denial of service. This issue is fixed in version 4.2.16.Final.
Impacted products
Vendor Product Version
netty netty Version: < 4.2.16.Final
Create a notification for this product.
Show details on NVD website


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