IBM Support

Security Bulletin:Multiple vulnerabilities in netty-codec-stomp may affect IBM Infosphere Change Data Capture (CVE-2026-93494, CVE-2026-93560)

Security Bulletin


Summary

Multiple security vulnerabilities have been identified in netty-codec-stomp, Netty/Codec/Stomp. netty-codec-stomp is used by IBM Infosphere Change Data Capture. IBM has addressed these vulnerabilities. Refer to the "Remediation/Fixes" section below for remediation details.

Vulnerability Details

CVEID:   CVE-2026-93494
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.
CWE:   CWE-1035: OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CVSS Source:   secalert@redhat.com
CVSS Base score:   7.5
CVSS Vector:   (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

CVEID:   CVE-2026-93560
DESCRIPTION:   A flaw was found in the Netty STOMP codec. A remote attacker could send a specially crafted STOMP frame with a content-length header exceeding the maximum integer value. This integer truncation vulnerability could lead to an infinite decode loop, causing a Denial of Service (DoS) by exhausting memory and CPU resources.
CWE:   CWE-1035: OWASP Top Ten 2017 Category A9 - Using Components with Known Vulnerabilities
CVSS Source:   secalert@redhat.com
CVSS Base score:   7.5
CVSS Vector:   (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)

Affected Products and Versions

Affected Product(s)Version(s)
InfoSphere Data Replication11.4
InfoSphere Data Replication11.4.0

Workarounds and Mitigations

netty-codec-stomp has been upgraded to netty-codec-stomp-4.1.139.Final non-vulnerable version.
The fix will be available in an upcoming product release.

Get Notified about Future Security Bulletins

References

Off

Acknowledgement

Change History

26 Oct 2026: Initial Publication

*The CVSS Environment Score is customer environment specific and will ultimately impact the Overall CVSS Score. Customers can evaluate the impact of this vulnerability in their environments by accessing the links in the Reference section of this Security Bulletin.

Disclaimer

According to the Forum of Incident Response and Security Teams (FIRST), the Common Vulnerability Scoring System (CVSS) is an "industry open standard designed to convey vulnerability severity and help to determine urgency and priority of response." IBM PROVIDES THE CVSS SCORES ""AS IS"" WITHOUT WARRANTY OF ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY ACTUAL OR POTENTIAL SECURITY VULNERABILITY. In addition to other efforts to address potential vulnerabilities, IBM periodically updates the record of components contained in our product offerings. As part of that effort, if IBM identifies previously unidentified packages in a product/service inventory, we address relevant vulnerabilities regardless of CVE date. Inclusion of an older CVEID does not demonstrate that the referenced product has been used by IBM since that date, nor that IBM was aware of a vulnerability as of that date. We are making clients aware of relevant vulnerabilities as we become aware of them. "Affected Products and Versions" referenced in IBM Security Bulletins are intended to be only products and versions that are supported by IBM and have not passed their end-of-support or warranty date. Thus, failure to reference unsupported or extended-support products and versions in this Security Bulletin does not constitute a determination by IBM that they are unaffected by the vulnerability. Reference to one or more unsupported versions in this Security Bulletin shall not create an obligation for IBM to provide fixes for any unsupported or extended-support products or versions.

Document Location

Worldwide

[{"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSSLAQ","label":"IBM Data Replication"},"Component":"","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF016","label":"Linux"},{"code":"PF033","label":"Windows"}],"Version":"11.4","Edition":"","Line of Business":{"code":"LOB76","label":"Data Platform"}}]

Document Information

Modified date:
26 October 2026

Initial Publish date:
26 October 2026

UID

ibm17294020