CVE-2026-59899 (GCVE-0-2026-59899)
Vulnerability from cvelistv5
Published
2026-07-29 18:00
Modified
2026-07-30 14:01
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Summary
Netty is an asynchronous, event-driven network application framework. Prior to versions 4.1.136.Final and 4.2.16.Final, `HttpContentEncoder` (the superclass of the production handler `HttpContentCompressor`) maintains a per-channel `ArrayDeque<CharSequence>` named `acceptEncodingQueue` that accumulates attacker-controlled data without any size limit. The queue is filled on the I/O thread for every inbound HTTP request and drained only when the application later writes a non-1xx response. This creates a resource exhaustion vulnerability when an attacker exploits HTTP/1.1 pipelining to flood the connection with requests faster than the application produces responses. This issue has been fixed in versions 4.1.136.Final and 4.2.16.Final.
Impacted products
Vendor Product Version
netty netty Version: >= 4.2.0.Final, < 4.2.16.Final
Version: < 4.1.136.Final
Create a notification for this product.
Show details on NVD website


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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