Request Smuggling Vulnerability in Undertow by Red Hat
CVE-2026-28368

8.7HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Build Of Apache Camel For Spring Boot 4
Red Hat Build Of Apache Camel - Hawtio 4
Red Hat Data Grid 8
Red Hat Enterprise Linux 10
Vendor
CVE Published:
27 March 2026

What is CVE-2026-28368?

A security flaw exists in Undertow that allows remote attackers to exploit discrepancies in header parsing between Undertow and upstream proxies. By crafting specially formatted requests, an attacker can execute request smuggling attacks, which may lead to the bypassing of security measures and unauthorized access to sensitive resources. It is crucial for users of Undertow to assess their systems and apply necessary patches to mitigate potential risks associated with this vulnerability.

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References

https://access.redhat.com/security/cve/CVE-2026-28368
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2443261
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • Vulnerability published

  • Vulnerability Reserved

JSON
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