CVE-2026-28368 is a critical vulnerability in Undertow, affecting various Red Hat products such as JBoss EAP and Data Grid, where header names are parsed differently by Undertow compared to upstream proxies. This discrepancy allows a remote attacker to construct specially crafted requests, enabling request smuggling attacks. Rated 9.1 Critical (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N), the vulnerability has a low attack complexity and can lead to high impact on confidentiality and integrity by bypassing security controls and accessing unauthorized resources. There is currently no evidence of active exploitation, public exploit code, or KEV listing. However, the vulnerability has received some initial community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.0CPE matchmatch criteria | cpe:2.3:a:redhat:build_of_apache_camel_-_hawtio:4.0:*:*:*:*:*:*:* | ||
4.0CPE matchmatch criteria | cpe:2.3:a:redhat:build_of_apache_camel_for_spring_boot:4.0:*:*:*:*:*:*:* | ||
8.0CPE matchmatch criteria | cpe:2.3:a:redhat:data_grid:8.0:*:*:*:*:*:*:* | ||
7.0.0CPE matchmatch criteria | cpe:2.3:a:redhat:fuse:7.0.0:*:*:*:*:*:*:* | ||
7.0.0CPE matchmatch criteria | cpe:2.3:a:redhat:jboss_enterprise_application_platform:7.0.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.