CVE-2026-93494
Io.netty/netty-codec-stomp: netty: bytebuf leak in stompsubframedecoder when a frame body is never terminated
- State
- Published
- Severity
- 7.5 High
- Published
- Sep 18, 2026
- Updated
- Sep 25, 2026
- Reserved
- Sep 18, 2026
Description
A flaw was found in Netty's StompSubframeDecoder component. A remote attacker can exploit this vulnerability by sending a specially crafted STOMP frame body without its terminating null byte. This causes the decoder to allocate a ByteBuf (a buffer for bytes) that is never released, leading to a permanent memory leak. Over time, this uncontrolled memory consumption can result in a Denial of Service (DoS) for the application using the affected STOMP codec.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | redhat |
Weaknesses
Affected Products
| Product | Versions |
|---|---|
Red Hat build of Apache Camel for Spring Boot 4Red Hat | |
Red Hat Fuse 7Red Hat | |
Red Hat JBoss Enterprise Application Platform 7Red Hat | |
Red Hat JBoss Enterprise Application Platform 7Red Hat | |
Red Hat JBoss Enterprise Application Platform 7Red Hat | |
Red Hat JBoss Enterprise Application Platform 7Red Hat | |
Red Hat Single Sign-On 7Red Hat |
References
- https://access.redhat.com/security/cve/CVE-2026-93494vdb-entry
- RHBZ#2536898issue-tracking
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