Loop with Unreachable Exit Condition ('Infinite Loop') Affecting netty-codec-xml package, versions *


Severity

Recommended
0.0
high
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.79% (55th percentile)

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  • Snyk IDSNYK-RHEL8-NETTYCODECXML-19223593
  • published23 Aug 2026
  • disclosed13 Aug 2026

Introduced: 13 Aug 2026

CVE-2026-73507  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:8 netty-codec-xml.

NVD Description

Note: Versions mentioned in the description apply only to the upstream netty-codec-xml package and not the netty-codec-xml package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.136.Final and 4.2.16.Final, io.netty.handler.codec.xml.XmlFrameDecoder.decode() failed to preserve closing-tag parser state across invocations, so an unauthenticated remote attacker could trickle-feed repeated </ sequences that repeatedly rescanned the accumulated buffer and exhausted an EventLoop thread's CPU, causing denial of service with a maxFrameLength of 1 MB. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

CVSS Base Scores

version 3.1