Vulnerability in Red Hat Amq Broker 7

CVE-2026-93492

A flaw was found in Netty's HTTP/2 HpackEncoder. A remote attacker can exploit this by sending HTTP/2 SETTINGS frames with a very large MAX_HEADER_TABLE_SIZE. This causes the HpackEncoder to store an excessive number of unique headers, leading to increased CPU usage and memory consumption, ultimately resulting in a Denial of Service (DoS).

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-93492?
CVE-2026-93492 is a medium-severity vulnerability in Red Hat Amq Broker 7, classified under CWE-1035. CVSS score: 5.3/10. Published 2026-09-18.
How severe is CVE-2026-93492?
Medium severity. CVSS v3 base score is 5.3 out of 10.