Allocation of Resources Without Limits or Throttling Affecting netty-codec-http package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.67% (50th percentile)

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  • Snyk IDSNYK-RHEL7-NETTYCODECHTTP-18367651
  • published28 Jul 2026
  • disclosed20 Jul 2026

Introduced: 20 Jul 2026

CVE-2026-55831  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:7 netty-codec-http.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netty-codec-http package and not the netty-codec-http package as distributed by RHEL. See How to fix? for RHEL:7 relevant fixed versions and status.

Netty is a network application framework for development of protocol servers and clients. Prior to 4.1.136.Final and 4.2.16.Final, Netty's SPDY SETTINGS decoder accepts a peer-declared SETTINGS entry count up to the 24-bit frame-length limit and materializes every unique setting ID in DefaultSpdySettingsFrame, allowing a remote SPDY/3.1 peer to send a syntactically valid roughly 2 MiB SETTINGS frame that creates 262144 map entries and amplifies network input into heap growth and ordered-map insertion work. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

CVSS Base Scores

version 3.1