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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-48006 Detail

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, the RedisArrayAggregator handler permanently leaks pooled direct-memory buffers when a Redis pipeline connection closes before a RESP array aggregate completes. The handler retains child messages in per-handler state (`depths` field) but defines no `channelInactive`, `handlerRemoved`, or `exceptionCaught` method to release them when the pipeline tears down. Because the leaked buffers are slices of `PooledByteBufAllocator` chunks, they prevent those chunks from being returned to the JVM-wide direct-memory pool. Repeated connection churn by any network peer monotonically drains this shared pool, eventually causing allocation failures on all Netty channels in the process. Versions 4.1.135.Final and 4.2.15.Final patch the issue.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  GitHub, Inc.
CVSS-B 8.7 HIGH
Vector:  CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://access.redhat.com/security/cve/CVE-2026-48006 redhat-SADP
https://bugzilla.redhat.com/show_bug.cgi?id=2488433 redhat-SADP
https://github.com/netty/netty/releases/tag/netty-4.1.135.Final GitHub, Inc. Release Notes 
https://github.com/netty/netty/releases/tag/netty-4.2.15.Final GitHub, Inc. Release Notes 
https://github.com/netty/netty/security/advisories/GHSA-6jv9-x5w9-2ccm GitHub, Inc. Vendor Advisory 
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-48006.json redhat-SADP

Weakness Enumeration

CWE-ID CWE Name Source
CWE-401 Missing Release of Memory after Effective Lifetime GitHub, Inc.  
CWE-772 Missing Release of Resource after Effective Lifetime redhat-SADP  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

5 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-48006
NVD Published Date:
06/12/2026
NVD Last Modified:
06/29/2026
Source:
GitHub, Inc.