Improper input validation in Red Hat Amq Broker 7
CVE-2026-93567
A flaw was found in Netty's HTTP/2 codec. When converting HTTP/1 CONNECT requests to HTTP/2, the component incorrectly uses the Host header instead of the CONNECT authority-form request-target for the tunnel authority. A remote attacker can exploit this by supplying a different Host header, leading to a malformed HTTP/2 CONNECT request. This can bypass security controls such as tunnel allow-lists or egress policies, resulting in integrity loss.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.026 (85.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.015 · newest: 0.026 · change: +0.010
Affected products
- Red Hat Amq Broker 7
- Red Hat Build Of Apache Camel 4 For Quarkus 3
- Red Hat Build Of Apache Camel For Spring Boot 4
- Red Hat Build Of Apicurio Registry 3
- Red Hat Build Of Debezium 3
- Red Hat Build Of Keycloak
- Red Hat Build Of Quarkus
- Red Hat Data Grid 8
- Red Hat Fuse 7
- Red Hat Jboss Enterprise Application Platform 7
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-93567 (vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking)
- access.redhat.com/errata/RHSA-2026:69470 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:69440 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:70257 (vendor-advisory)
- access.redhat.com/errata/RHSA-2026:83612 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-93567?
- CVE-2026-93567 is a high-severity vulnerability in Red Hat Amq Broker 7, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2026-09-18.
- How severe is CVE-2026-93567?
- High severity. CVSS v3 base score is 7.5 out of 10.