CVE-2026-28368
Detail
Modified After Enrichment This CVE record has been updated after NVD enrichment efforts were completed. Enrichment data supplied by the NVD may require amendment due to these changes.
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.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-444
Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
Red Hat, Inc.
Change History
6 change records found show changes
CVE Modified by Red Hat, Inc.
6/29/2026 6:16:31 AM
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View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"undertow-core","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-activemq-artemis","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:2.40.0-7.redhat_00015.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-eap-product-conf-parent","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:801.6.1-1.GA_redhat_00001.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-undertow","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:2.3.24-3.SP2_redhat_00001.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-wildfly","cpes":["cpe:/a:redhat:jboss_enterprise_applicati
Record truncated, showing 2048 of 8099 characters.
View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"undertow-core","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-activemq-artemis","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:2.40.0-7.redhat_00015.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-eap-product-conf-parent","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:801.6.1-1.GA_redhat_00001.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-undertow","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:2.3.24-3.SP2_redhat_00001.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-wildfly","cpes":["cpe:/a:redhat:jboss_enterprise_applicati
CVE Modified by CISA-ADP
6/17/2026 6:28:29 AM
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SSVC
{"timestamp":"2026-03-27T18:49:45.702271Z","id":"CVE-2026-28368","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}
CVE Modified by Red Hat, Inc.
6/17/2026 6:28:29 AM
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Record truncated, showing 2048 of 8097 characters.
View Entire Change Record [{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1","defaultStatus":"unaffected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"undertow-core","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-activemq-artemis","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:2.40.0-7.redhat_00015.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-eap-product-conf-parent","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:801.6.1-1.GA_redhat_00001.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-undertow","cpes":["cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el8","cpe:/a:redhat:jboss_enterprise_application_platform:8.1::el9"],"versions":[{"version":"0:2.3.24-3.SP2_redhat_00001.1.el8eap","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat JBoss Enterprise Application Platform 8.1 for RHEL 8","defaultStatus":"affected","collectionURL":"https://access.redhat.com/downloads/content/package-browser/","packageName":"eap8-wildfly","cpes":["cpe:/a:redhat:jboss_enterprise_applicati
CVE Modified by Red Hat, Inc.
6/10/2026 6:16:56 PM
Action
Type
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Reference
https://access.redhat.com/errata/RHSA-2026:25125
Added
Reference
https://access.redhat.com/errata/RHSA-2026:25126
Initial Analysis by NIST
3/31/2026 2:20:30 PM
Action
Type
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CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Added
CPE Configuration
OR
*cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:undertow:-:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:single_sign-on:7.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:process_automation:7.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:data_grid:8.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:jboss_enterprise_application_platform_expansion_pack:-:*:*:*:*:*:*:*
*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:jboss_enterprise_application_platform:8.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:fuse:7.0.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:build_of_apache_camel_-_hawtio:4.0:*:*:*:*:*:*:*
*cpe:2.3:a:redhat:build_of_apache_camel_for_spring_boot:4.0:*:*:*:*:*:*:*
Added
Reference Type
Red Hat, Inc.: https://access.redhat.com/security/cve/CVE-2026-28368 Types: Vendor Advisory
Added
Reference Type
Red Hat, Inc.: https://bugzilla.redhat.com/show_bug.cgi?id=2443261 Types: Issue Tracking, Vendor Advisory
New CVE Received from Red Hat, Inc.
3/27/2026 1:16:27 PM
Action
Type
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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.
Added
CVSS V3.1
AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
Added
CWE
CWE-444
Added
Reference
https://access.redhat.com/security/cve/CVE-2026-28368
Added
Reference
https://bugzilla.redhat.com/show_bug.cgi?id=2443261
Quick Info
CVE Dictionary Entry: CVE-2026-28368 NVD
Published Date: 03/27/2026 NVD
Last Modified: 06/29/2026
Source: Red Hat, Inc.
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