Inconsistent interpretation of HTTP requests in Netty - CVE-2026-42580

Vulnerability identifier: #VU130211

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-42580

CWE-ID: CWE-444

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to inject arbitrary HTTP requests.

The vulnerability exists due to inconsistent interpretation of HTTP requests in io.netty.handler.codec.http.HttpObjectDecoder#getChunkSize when parsing chunked HTTP requests. A remote attacker can send a specially crafted chunked request to inject arbitrary HTTP requests.

Netty
SUSE Linux Enterprise Server 15 SP6
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
Development Tools Module
SUSE Package Hub 15
Rational Test Virtualization Server
IBM SPSS Analytic Server
UCD - IBM UrbanCode Deploy
DataStax Hyper-Converged Database
Enterprise Build of Quarkus
Storage Scale
DevOps Deploy
Maximo Application Suite - Monitor Component
Rational Performance Tester
DevOps Test Virtualization
DevOps Test Integrations and APIs
DevOps Test Performance
webMethods ControlPlane
webMethods developer portal
Storage Protect Server
IBM DB2
netty-tcnative-debugsource
netty-tcnative
netty
netty-javadoc

Install security update from vendor's website.

Netty - addressed in versions 4.1.133, 4.2.13
DataStax Hyper-Converged Database - update to 1.2.7
Enterprise Build of Quarkus - update to 3.27.4
Storage Scale - addressed in versions 5.2.3.10, 6.0.1.1
UCD - IBM UrbanCode Deploy - addressed in versions 7.2.3.24, 7.3.2.19
DevOps Deploy - addressed in versions 8.0.1.14, 8.1.2.7, 8.2.2.0
Maximo Application Suite - Monitor Component - addressed in versions 9.0.23, 9.1.13, 9.2.1
DevOps Test Virtualization - update to 12.0.0
DevOps Test Integrations and APIs - update to 12.0.0
DevOps Test Performance - update to 11.0.8
webMethods ControlPlane - update to 11.1 Fix11
webMethods developer portal - update to 11.1 Fix14
netty-tcnative-debugsource - update to 2.0.77-150200.3.39.1
netty-tcnative - update to 2.0.77-150200.3.39.1
netty - update to 4.1.133-150200.4.46.1
netty-javadoc - update to 4.1.133-150200.4.46.1
Storage Protect Server - update to 8.2.2

• https://github.com/netty/netty/security/advisories/GHSA-m4cv-j2px-7723

• Multiple vulnerabilities in Netty
• Multiple vulnerabilities in IBM DevOps Test Performance
• Multiple vulnerabilities in IBM SPSS Analytic Server
• SUSE update for netty, netty-tcnative
• Multiple vulnerabilities in IBM Enterprise Build of Quarkus
• Multiple vulnerabilities in IBM Db2
• Multiple vulnerabilities in IBM DevOps Deploy / IBM UrbanCode Deploy (UCD)
• Multiple vulnerabilities in IBM Storage Protect Server
• Multiple vulnerabilities in IBM Maximo Application Suite - Monitor Component
• Multiple vulnerabilities in IBM webMethods API Management
• Multiple vulnerabilities in IBM Storage Scale
• Multiple vulnerabilities in IBM DataStax Hyper-Converged Database
• Multiple vulnerabilities in IBM DevOps Test Virtualization/IBM DevOps Test Integrations and APIs