PT-2026-48903 · Netty · Netty

Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-50011

Mitre

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Fix

Resource Exhaustion

Allocation of Resources Without Limits

Weakness Enumeration

CWE-400

CWE-770

Related Identifiers

CVE-2026-50011

Affected Products

Netty

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-50011 · Security Note
• https://github.com/netty/netty/releases/tag/netty-4.1.135.Final · Note
• https://github.com/netty/netty/releases/tag/netty-4.2.15.Final · Note
• https://github.com/netty/netty/security/advisories/GHSA-5w86-c3rq-vjj7 · Note