Bug 2477227 (CVE-2026-42585) - CVE-2026-42585 netty: io.netty/netty-codec-http: Netty: Request smuggling via malformed Transfer-Encoding parsing
Summary: CVE-2026-42585 netty: io.netty/netty-codec-http: Netty: Request smuggling via...
Keywords:
Status: NEW
Alias: CVE-2026-42585
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2482692
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-05-13 19:02 UTC by OSIDB Bzimport
Modified: 2026-09-30 13:16 UTC (History)
110 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2026:53644 0 None None None 2026-08-11 16:37:22 UTC
Red Hat Product Errata RHSA-2026:53645 0 None None None 2026-09-17 17:48:57 UTC
Red Hat Product Errata RHSA-2026:53646 0 None None None 2026-09-17 17:47:13 UTC
Red Hat Product Errata RHSA-2026:53806 0 None None None 2026-08-11 17:42:09 UTC
Red Hat Product Errata RHSA-2026:73644 0 None None None 2026-09-30 00:11:20 UTC
Red Hat Product Errata RHSA-2026:73976 0 None None None 2026-09-30 13:16:03 UTC

Description OSIDB Bzimport 2026-05-13 19:02:28 UTC 
Netty is an asynchronous, event-driven network application framework. Prior to 4.2.13.Final and 4.1.133.Final, Netty incorrectly parses malformed Transfer-Encoding, enabling request smuggling attacks. This vulnerability is fixed in 4.2.13.Final and 4.1.133.Final.
Comment 3 errata-xmlrpc 2026-08-11 16:37:16 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7

Via RHSA-2026:53644 https://access.redhat.com/errata/RHSA-2026:53644
Comment 4 errata-xmlrpc 2026-08-11 17:42:02 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4.25

Via RHSA-2026:53806 https://access.redhat.com/errata/RHSA-2026:53806
Comment 5 Jon Orris 2026-09-17 17:47:08 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9

Via RHSA-2026:53646 https://access.redhat.com/errata/RHSA-2026:53646
Comment 6 Jon Orris 2026-09-17 17:48:52 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8

Via RHSA-2026:53645 https://access.redhat.com/errata/RHSA-2026:53645
Comment 7 Jon Orris 2026-09-30 00:11:14 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.3 EUS for RHEL 7

Via RHSA-2026:73644 https://access.redhat.com/errata/RHSA-2026:73644
Comment 8 Jon Orris 2026-09-30 13:15:58 UTC 
This issue has been addressed in the following products:

  Red Hat JBoss Enterprise Application Platform 7.1 EUS for RHEL 7

Via RHSA-2026:73976 https://access.redhat.com/errata/RHSA-2026:73976
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