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CVE-2026-50011

Netty has unbounded pre-allocation in RedisArrayAggregator from RESP array length

Published: Jun 12, 2026Updated: Aug 5, 2026 Sources: CVE List NVD BDUCWE-400
7.5HIGH
NVD MITRE
EPSS Score
0.4%
Top 63.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Netty is a network application framework for development of protocol servers and clients. Prior to versions 4.1.135.Final and 4.2.15.Final, RedisArrayAggregator pre-allocates ArrayList with initial capacity equal to the RESP array element count declared in an array header. That count is taken from the wire before the corresponding child messages exist. A small malicious header can claim a huge initial capacity. Versions 4.1.135.Final and 4.2.15.Final patch the issue.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-400CWE-770

Affected Products

netty
oss-projectaka io.netty:netty, netty-incubator-codec-ohttp
nettyLibraryLibrary
OSS Libraries / generic-library
Сообщество свободного программного обеспечения
oss-projectaka fsf
NettyOn-premLibrary
OSS Libraries / generic-library

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
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References

https://github.com/netty/netty/releases/tag/netty-4.1.135.Final
github.com
https://github.com/netty/netty/releases/tag/netty-4.2.15.Final
github.com
https://github.com/netty/netty/security/advisories/GHSA-5w86-c3rq-vjj7
github.com
and 9 more references View all →

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