Memory Leak Vulnerability in Netty's StompSubframeDecoder Component
CVE-2026-93494

7.5HIGH

Key Information:

Vendor

Red Hat
Status
Red Hat Build Of Apache Camel For Spring Boot 4
Red Hat Fuse 7
Red Hat Jboss Enterprise Application Platform 7
Red Hat Single Sign-on 7
Vendor
CVE Published:
18 September 2026

What is CVE-2026-93494?

A vulnerability exists in Netty's StompSubframeDecoder component, where a remote attacker can exploit the system by sending a specially crafted STOMP frame body that lacks its terminating null byte. This results in the decoder allocating a ByteBuf that remains unreleased, causing a persistent memory leak. As time progresses, this unregulated consumption of memory can lead to a Denial of Service (DoS) for any applications utilizing the affected STOMP codec, thereby impacting system availability.

References

https://access.redhat.com/security/cve/CVE-2026-93494
vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2536898
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

.