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Netty: HTTP Request Smuggling via Chunked Extension Quoted-String Parsing

🗓️ 26 Mar 2026 18:48:55Reported by GitHub Advisory DatabaseType 
github
 github🔗 github.com👁 24 Views

Netty mishandles quoted strings in HTTP chunked extensions, enabling request smuggling via CRLF.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
IBM Security Bulletins		Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in netty-codec-http-4.1.129.Final.jar
28 Apr 202622:37
–ibm
IBM Security Bulletins		Security Bulletin: Vulnerability in Netty affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.
22 Jun 202613:17
–ibm
IBM Security Bulletins		Security Bulletin: IBM Enterprise Build of Quarkus is affected by multiple vulnerabilities
15 Apr 202615:10
–ibm
IBM Security Bulletins		Security Bulletin: Multiple Vulnerabilities affect IBM Decision Optimization for Cloud Pak for Data.
5 Jun 202610:12
–ibm
IBM Security Bulletins		Security Bulletin: IBM App Connect for Manufacturing is vulnerable to multiple vulnerabilities due to Netty and jackson-core (CVE-2026-33870, WS-2026-003)
11 May 202607:46
–ibm
IBM Security Bulletins		Security Bulletin: IBM Event Processing is affected by Multiple vulnerabilities
12 Jun 202607:30
–ibm
IBM Security Bulletins		Security Bulletin: DataStage on Cloud Pak for Data has several vulnerabilities due to open source software
22 Jun 202614:26
–ibm
IBM Security Bulletins		Security Bulletin: IBM® Db2® federated server is affected by multiple vulnerabilities in Netty open source libraries.
23 Jun 202619:50
–ibm
IBM Security Bulletins		Security Bulletin: There is a vulnerability in netty-codec-http-4.1.130.Final.jar used by IBM Maximo Manage application in IBM Maximo Application Suite (CVE-2026-33870)
29 May 202609:04
–ibm
IBM Security Bulletins		Security Bulletin: IBM Maximo Application Suite - Monitor Component uses netty-codec-http-4.2.9.Final.jar which is vulnerable to CVE-2026-33870
29 May 202608:49
–ibm
Rows per page
Vulners
Node
io.nettynetty-codec-httpRange4.2.0.Alpha1–4.2.10.Finalmaven
OR
io.nettynetty-codec-httpRange<4.1.132.Finalmaven

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27 Mar 2026 21:49Current
6Medium risk
Vulners AI Score6
CVSS 3.17.5
EPSS0.0064
SSVC
CWE-444
Nettychunked extensionsquoted stringsrequest smugglingcarriage return line feedhttp protocol
24