RHLW-2026-EE001BC1AC13AB0B Lightwell Security Advisory: netty-codec 4.1.100.Final-rhlw-00001

Red Hat Lightwell has released io.netty:netty-codec 4.1.100.Final-rhlw-00001 with backported fixes for CVE-2025-58057, CVE-2026-42583, and CVE-2026-59901. CVE-2025-58057: Netty's BrotliDecoder is vulnerable to DoS via zip bomb style attack CVE-2026-42583: Netty: Lz4FrameDecoder resource exhaustio...

Security Bulletin:Netty Vulnerability in Lz4FrameDecoder: Memory Allocation Bypass

Summary Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22...

Security Bulletin: Multiple Vulnerabilities in Hyper-Converged Database 1.2

Summary Multiple vulnerabilities were addressed in Hyper-Converged Database version 1.2.7 Vulnerability Details CVEID:CVE-2026-42583 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of...

netty: io.netty/netty-codec-compression: io.netty/netty-codec: Netty: Denial of Service via excessive memory allocation in LZ4FrameDecoder

A flaw was found in Netty, an asynchronous, event-driven network application framework. A remote attacker can exploit this vulnerability by sending a specially crafted LZ4 compressed data stream. This can cause the Lz4FrameDecoder to allocate a large amount of memory up to 32 MB per block before...

netty: io.netty/netty-codec-compression: io.netty/netty-codec: Netty: Denial of Service via excessive memory allocation in LZ4FrameDecoder

A flaw was found in Netty, an asynchronous, event-driven network application framework. A remote attacker can exploit this vulnerability by sending a specially crafted LZ4 compressed data stream. This can cause the Lz4FrameDecoder to allocate a large amount of memory up to 32 MB per block before...

netty: io.netty/netty-codec-compression: io.netty/netty-codec: Netty: Denial of Service via excessive memory allocation in LZ4FrameDecoder

A flaw was found in Netty, an asynchronous, event-driven network application framework. A remote attacker can exploit this vulnerability by sending a specially crafted LZ4 compressed data stream. This can cause the Lz4FrameDecoder to allocate a large amount of memory up to 32 MB per block before...

Security Bulletin: Multiple Security Vulnerabilities in Netty Affect IBM Sterling B2B Integrator and IBM Sterling File Gateway

Summary IBM Sterling B2B Integrator and IBM Sterling File Gateway have addressed the security vulnerabilities Vulnerability Details CVEID:CVE-2026-42586 DESCRIPTION: Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, the Netty Redis code...

netty: io.netty/netty-codec-compression: io.netty/netty-codec: Netty: Denial of Service via excessive memory allocation in LZ4FrameDecoder

A flaw was found in Netty, an asynchronous, event-driven network application framework. A remote attacker can exploit this vulnerability by sending a specially crafted LZ4 compressed data stream. This can cause the Lz4FrameDecoder to allocate a large amount of memory up to 32 MB per block before...

DoS (Denial of Service) io.netty:netty-codec Dependency in Bitbucket Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 9.0.1, 9.1.0, 9.2.0, 9.3.0, 9.4.0, 9.5.0, 9.6.0, 10.0.0, 10.1.1, 10.2.0, and 10.3.0 of Bitbucket Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of...

Security Bulletin: MongoDB Enterprised Advanced affected by: Data Amplification, Uncontrolled Resource Consumption (CVE-2025-58057, CVE-2026-42583)

Summary There are vulnerabilities in netty-codec-4.1.132.Final.jar used in MongoDB Enterprised Advanced for IBM, involving CVE-2025-58057, CVE-2026-42583. The vulnerabilities have been addressed. Vulnerability Details CVEID:CVE-2025-58057 DESCRIPTION: Netty is an asynchronous event-driven network...

Security Bulletin: Vulnerability in Netty affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.

Summary Potential vulnerability in Netty has been identified that affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component. . The vulnerability have been addressed. Refer to details for additional information. Vulnerability...

DoS (Denial of Service) io.netty:netty-codec Dependency in Jira Software Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 9.12.1, 9.16.0, 9.17.0, 10.0.0, 10.1.1, 10.2.0, 10.3.0, 10.4.0, 10.5.0, 10.6.0, 10.7.1, 11.0.0, 11.1.0, 11.2.0, and 11.3.0 of Jira Software Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of...

netty: io.netty/netty-codec-compression: io.netty/netty-codec: Netty: Denial of Service via excessive memory allocation in LZ4FrameDecoder

A flaw was found in Netty, an asynchronous, event-driven network application framework. A remote attacker can exploit this vulnerability by sending a specially crafted LZ4 compressed data stream. This can cause the Lz4FrameDecoder to allocate a large amount of memory up to 32 MB per block before...

Linux Distros Unpatched Vulnerability : CVE-2026-42583

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size...

CVE-2026-42583

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

CVE-2026-42583 Netty: Lz4FrameDecoder resource exhaustion

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

CVE-2026-42583: Uncontrolled Resource Consumption

Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if...

Netty resource management error vulnerability

Netty is a non-blocking I/O client-server framework from the Netty community. It is primarily used for developing Java network applications, such as protocol servers and clients. Versions of Netty prior to 4.2.13.Final and 4.1.133.Final contained a resource management vulnerability. This...

Netty Lz4FrameDecoder is vulnerable to resource exhaustion

Summary Lz4FrameDecoder allocates a ByteBuf of size decompressedLength up to 32 MB per block before LZ4 runs. A peer only needs a 21-byte header plus compressedLength payload bytes - 22 bytes if compressedLength == 1 - to force that allocation. Details...