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Vulnerability record · CVE-2026-28369 · published 27 March 2026

CVE-2026-28369: Redhat build of apache camel - hawtio http request smuggling vulnerability

Redhat · Build Of Apache Camel Hawtio

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.

9.1 CVSS 3.1 Critical EPSS 0.89% · top 42.4% CWE-444 · HTTP request smuggling
9.1CVSS 3.1 base score
0.89%EPSS exploitation probability, 30 days
NoNot in CISA KEV
10Affected product versions listed by NVD
4References
21 Sep 2026Last modified by NVD

Description

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected products

10 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:25125
https://access.redhat.com/errata/RHSA-2026:25126
https://access.redhat.com/security/cve/CVE-2026-28369 Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2443262 Issue TrackingVendor Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-28369), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.