Bug 2529768 (CVE-2026-19203) - CVE-2026-19203 org.eclipse.jetty/jetty-http: Jetty: HTTP request smuggling via crafted chunked requests
Summary: CVE-2026-19203 org.eclipse.jetty/jetty-http: Jetty: HTTP request smuggling vi...
Keywords:
Status: NEW
Alias: CVE-2026-19203
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-08 12:47 UTC by OSIDB Bzimport
Modified: 2026-10-29 21:39 UTC (History)
66 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-2026:83670 0 None None None 2026-10-15 23:25:21 UTC
Red Hat Product Errata RHSA-2026:92858 0 None None None 2026-10-29 21:37:31 UTC
Red Hat Product Errata RHSA-2026:92859 0 None None None 2026-10-29 21:39:54 UTC
Red Hat Product Errata RHSA-2026:92860 0 None None None 2026-10-29 21:36:04 UTC

Description OSIDB Bzimport 2026-09-08 12:47:37 UTC 
A client may issue specially crafted HTTP/1.1 chunked requests to a Jetty server that cause Jetty and an intermediary proxy to interpret different request boundaries, potentially resulting in HTTP request smuggling.




This is caused by Jetty accepting a lone LF character as a terminator in parts of chunked request parsing. Depending on the Jetty version and configured HTTP compliance mode, this may occur in chunk extensions, chunk data termination, or trailer termination.
Comment 3 Jon Orris 2026-10-15 23:25:17 UTC 
This issue has been addressed in the following products:

  Red Hat Build of Apache Camel 4.18 for Quarkus 3.33

Via RHSA-2026:83670 https://access.redhat.com/errata/RHSA-2026:83670
Comment 4 Jon Orris 2026-10-29 21:36:00 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.18 for RHEL 9

Via RHSA-2026:92860 https://access.redhat.com/errata/RHSA-2026:92860
Comment 5 Jon Orris 2026-10-29 21:37:26 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.16 for RHEL 8
  Red Hat Satellite 6.16 for RHEL 9

Via RHSA-2026:92858 https://access.redhat.com/errata/RHSA-2026:92858
Comment 6 Jon Orris 2026-10-29 21:39:50 UTC 
This issue has been addressed in the following products:

  Red Hat Satellite 6.17 for RHEL 9

Via RHSA-2026:92859 https://access.redhat.com/errata/RHSA-2026:92859
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