CVE-2026-93572
Published:September 18, 2026
Updated:October 09, 2026
A flaw was found in Netty's "RedisArrayAggregator" component. A remote attacker can exploit this vulnerability by sending specially crafted nested Redis (RESP) array headers. This can cause the "RedisArrayAggregator" to eagerly preallocate a large amount of heap memory, leading to heap memory exhaustion and a Denial of Service (DoS) for applications using "RedisDecoder" with "RedisArrayAggregator" on untrusted traffic.
Affected Packages
https://github.com/netty/netty.git (GITHUB):
Affected version(s) >=netty-4.2.15.Final <netty-4.2.18.FinalFix Suggestion:
Update to version netty-4.2.18.Finalhttps://github.com/netty/netty.git (GITHUB):
Affected version(s) >=netty-4.1.135.Final <netty-4.1.138.FinalFix Suggestion:
Update to version netty-4.1.138.Finalio.netty:netty-codec-redis (JAVA):
Affected version(s) >=4.1.135.Final <4.1.138.FinalFix Suggestion:
Update to version 4.1.138.Finalio.netty:netty-codec-redis (JAVA):
Affected version(s) >=4.2.15.Final <4.2.18.FinalFix Suggestion:
Update to version 4.2.18.FinalAdditional Notes
The description of this vulnerability differs from MITRE.
Related Resources (3)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Allocation of Resources Without Limits or Throttling
EPSS
Base Score:
0.34