Description
Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.61.Final there is a vulnerability that enables request smuggling. The content-length header is not correctly validated if the request only uses a single Http2HeaderFrame with the endStream set to to true. This could lead to request smuggling if the request is proxied to a remote peer and translated to HTTP/1.1. This is a followup of GHSA-wm47-8v5p-wjpj/CVE-2021-21295 which did miss to fix this one case. This was fixed as part of 4.1.61.Final.
References (59)
Scores
CVSS v3
5.9
EPSS
0.0255
EPSS Percentile
85.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Details
CWE
CWE-444
Status
published
Products (29)
debian/debian_linux
10.0
io.netty/netty
0Maven
io.netty/netty-codec-http2
4.0.0 - 4.1.61.FinalMaven
netapp/oncommand_api_services
netapp/oncommand_workflow_automation
netty/netty
< 4.1.61
oracle/banking_corporate_lending_process_management
14.2.0
oracle/banking_corporate_lending_process_management
14.3.0
oracle/banking_corporate_lending_process_management
14.5.0
oracle/banking_credit_facilities_process_management
14.2.0
... and 19 more
Published
Mar 30, 2021
Tracked Since
Feb 18, 2026