CVE-2026-28368

HIGH

8.7

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.

CVE Details

CVSS v3.1 Score8.7

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N

Attack VectorNETWORK

ComplexityHIGH

Privileges RequiredNONE

User InteractionNONE

Published3/27/2026

Last Modified3/31/2026

Sourcenvd

Honeypot Sightings0

Affected Products

redhat:build_of_apache_camel_-_hawtioredhat:build_of_apache_camel_for_spring_bootredhat:data_gridredhat:enterprise_linuxredhat:fuseredhat:jboss_enterprise_application_platformredhat:jboss_enterprise_application_platform_expansion_packredhat:process_automationredhat:single_sign-onredhat:undertow

Weaknesses (CWE)

CWE-444

References

https://access.redhat.com/security/cve/CVE-2026-28368(secalert@redhat.com)

https://bugzilla.redhat.com/show_bug.cgi?id=2443261(secalert@redhat.com)

IOC Correlations

No correlations recorded

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