Vulnerability in Red Hat Amq Broker 7
CVE-2026-93574
A flaw was found in Netty's `netty-codec-http` component. A remote attacker could exploit this vulnerability by sending a specially crafted HTTP/1.1 chunk-size token that includes post-digit whitespace. This incorrect parsing of the chunk size can lead to HTTP request smuggling. This allows an attacker to bypass security controls or access unauthorized resources in proxy/backend deployments.
Vulnerability class: HTTP Request Smuggling
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L.
EPSS exploit prediction
EPSS: 0.014 (71.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
Weakness classification (CWE)
References
- access.redhat.com/security/cve/CVE-2026-93574 (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-2026:83612 (vendor-advisory)
Frequently asked questions
- What is CVE-2026-93574?
- CVE-2026-93574 is a medium-severity vulnerability in Red Hat Amq Broker 7, classified under Inconsistent Interpretation of HTTP Requests (HTTP Request/Response Smuggling). CVSS score: 6.5/10. Published 2026-09-18.
- How severe is CVE-2026-93574?
- Medium severity. CVSS v3 base score is 6.5 out of 10.