8.7
High
CVE-2026-28368 Undertow: undertow: request smuggling via inconsistent header parsing
Description
A flaw was found in Undertow. This vulnerability allows a remote attacker to construct specially crafted requests where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy in header interpretation can be exploited to launch request smuggling attacks, potentially bypassing security controls and accessing unauthorized resources.
CVSS 3.1 detail
Vector CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:NExploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- Interaction
- None
- Scope
- Changed
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat build of Apache Camel for Spring Boot 4 | Versions not published | |
| Red Hat build of Apache Camel - HawtIO 4 | Versions not published | |
| Red Hat Data Grid 8 | Versions not published | |
| Red Hat Enterprise Linux 10 | Versions not published | |
| Red Hat Enterprise Linux 8 | Versions not published | |
| Red Hat Enterprise Linux 9 | Versions not published | |
| Red Hat Fuse 7 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform 7 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform 8 | Versions not published |
Show the 8 other branches Hide the 8 other branches
| Product | Affected versions | Fixed in |
|---|---|---|
| Red Hat JBoss Enterprise Application Platform Expansion Pack | Versions not published | |
| Red Hat Process Automation 7 | Versions not published | |
| Red Hat Single Sign-On 7 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform 8.1 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 9 | Versions not published | |
| Red Hat JBoss Enterprise Application Platform 8.1.7.GA 2.3 | earliest → < 2.3.24.SP3-redhat-00001 | 2.3.24.SP3-redhat-00001 |
| Red Hat JBoss Enterprise Application Platform 8.1.6 2.3 | earliest → < 2.3.24.SP2-redhat-00001 | 2.3.24.SP2-redhat-00001 |
References
- RHSA-2026:25125 access.redhat.com
- RHSA-2026:25126 access.redhat.com
- access.redhat.com access.redhat.com
- RHBZ#2443261 bugzilla.redhat.com
Timeline
- Published
- Last modified
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