Denial of Service Vulnerability in WebSocketServerExtensionHandler by Red Hat
CVE-2026-93558

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat AMQ Broker 7
Red Hat AMQ Clients
Red Hat Build Of Apache Camel 4 For Quarkus 3
Red Hat Build Of Apache Camel For Spring Boot 4
Vendor
CVE Published:
18 September 2026

What is CVE-2026-93558?

The WebSocketServerExtensionHandler in certain versions is susceptible to a vulnerability where unbounded growth in per-connection queues can lead to potential denial of service. This issue arises from improper management of data queues, allowing an attacker to overload the system's resources. Mitigating this vulnerability is crucial for maintaining server stability and ensuring uninterrupted service.

References

https://access.redhat.com/security/cve/CVE-2026-93558
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536932
issue-trackingx_refsource_REDHAT

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.