Allocation of Resources Without Limits or Throttling Affecting io.netty:netty-codec-redis package, versions [,4.1.135.Final)[4.2.0.Final,4.2.15.Final)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.34% (26th percentile)

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  • Snyk IDSNYK-JAVA-IONETTY-17263139
  • published9 Jun 2026
  • disclosed8 Jun 2026
  • creditVioleta Georgieva

Introduced: 8 Jun 2026

NewCVE-2026-44890  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade io.netty:netty-codec-redis to version 4.1.135.Final, 4.2.15.Final or higher.

Overview

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the decodeLength function. An attacker can exhaust the server's direct memory pool by sending continuous streams of digits without a terminating \r\n across multiple concurrent connections, which prevents legitimate connections from being processed.

Note:

This is only exploitable if an attacker is able to open multiple concurrent connections and distribute unbounded payloads among them.

CVSS Base Scores

version 4.0
version 3.1