CVE-2026-28369
CVE-2026-28369 · Undertow: undertow: request smuggling via malformed http request headers
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
A flaw was found in Undertow. When Undertow receives an HTTP request where the first header line starts with one or more spaces, it incorrectly processes the request by stripping these leading spaces. This behavior, which violates HTTP standards, can be exploited by a remote attacker to perform request smuggling. Request smuggling allows an attacker to bypass security mechanisms, access restricted information, or manipulate web caches, potentially leading to unauthorized actions or data exposure.
CVSS 8.7 · High · EPSS 0.7%
- Published
- Updated
Stack: system
Affected products and versions
red hat jboss enterprise application platform 8.1.6
- Versions
- ≥ 2.3.24.SP2-redhat-00001: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1 for rhel 8
- Versions
- ≥ 0:2.40.0-7.redhat_00015.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1 for rhel 8
- Versions
- ≥ 0:801.6.1-1.GA_redhat_00001.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1 for rhel 8
- Versions
- ≥ 0:2.3.24-3.SP2_redhat_00001.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1 for rhel 8
- Versions
- ≥ 0:8.1.6-7.GA_redhat_00010.1.el8eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1 for rhel 9
- Versions
- ≥ 0:2.40.0-7.redhat_00015.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1 for rhel 9
- Versions
- ≥ 0:801.6.1-1.GA_redhat_00001.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1 for rhel 9
- Versions
- ≥ 0:2.3.24-3.SP2_redhat_00001.1.el9eap: Not affected (rpm)
No fix published
red hat jboss enterprise application platform 8.1 for rhel 9
- Versions
- ≥ 0:8.1.6-7.GA_redhat_00010.1.el9eap: Not affected (rpm)
No fix published
red hat build of apache camel for spring boot 4
No fix published
red hat build of apache camel - hawtio 4
No fix published
red hat data grid 8
No fix published
red hat enterprise linux 10
No fix published
red hat enterprise linux 8
No fix published
red hat enterprise linux 9
No fix published
red hat fuse 7
No fix published
red hat jboss enterprise application platform 7
No fix published
red hat jboss enterprise application platform 8
No fix published
red hat jboss enterprise application platform expansion pack
No fix published
red hat jboss enterprise application platform expansion pack
No fix published
red hat process automation 7
No fix published
red hat single sign-on 7
No fix published
undertow Debian:14
- Versions
- 1.3.11-1
- 1.3.16-1
- 1.3.19-1
- 1.3.21-1
- 1.3.23-1
- 1.3.4-1
- 1.3.5-1
- 1.3.7-1
- 1.4.0-1
- 1.4.1-1
- 1.4.18-1
- 1.4.20-1
- 1.4.21-1
- 1.4.21-2
- 1.4.22-1
- 1.4.23-1
- 1.4.23-2
- 1.4.23-3
- 1.4.25-1
- 1.4.25-2
- 1.4.3-1
- 1.4.4-1
- 1.4.6-1
- 1.4.7-1
- 1.4.8-1
- 2.0.23-1
- 2.0.25-1
- 2.0.26-1
- 2.0.27-1
- 2.0.28-1
- 2.0.29-1
- 2.0.30-1
- 2.1.0-1
- 2.1.1-1
- 2.1.3-1
- 2.2.0-1
- 2.2.10-1
- 2.2.12-1
- 2.2.13-1
- 2.2.14-1
- 2.2.16-1
- 2.2.17-1
- 2.2.18-1
- 2.2.19-1
- 2.2.2-1
- 2.2.20-1
- 2.2.21-1
- 2.2.3-1
- 2.2.4-1
- 2.2.5-1
- 2.2.8-1
- 2.3.18-1
- 2.3.18-2
- 2.3.20-1
- 2.3.8-1
- 2.3.8-2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
undertow Ubuntu:Pro:16.04:LTS
- Versions
- 1.3.4-1
- 1.3.5-1
- 1.3.7-1
- 1.3.11-1
- 1.3.16-1
- 1.3.16-1ubuntu0.1~esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published