Live › vulnerability › CVE-2026-11828
Go to dashboardIBM MQ does not properly validate queue name length values, so a remote attacker with queue manager control or man-in-the-middle access on an unencrypted channel can crash client applications that consume messages asynchronously. The result is a denial of service, not code execution or data theft.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
Teams running the IBM MQ Operator in the affected ranges (2.0.0 to 2.0.29, 3.2.0 to 3.2.29, and 3.3.0 to 3.6.2 specific releases) whose client applications consume messages asynchronously. Exposure is higher where channels run unencrypted and someone on the path or with queue manager control can send crafted queue names. Teams that only run encrypted channels or do not use the operator can likely skip it.
| Product | Ecosystem | Affected | Fixed in |
|---|---|---|---|
| ibm mq operator | vendor | >= 2.0.0, <= 2.0.29 | – |
| ibm mq operator | vendor | >= 3.2.0, <= 3.2.29 | – |
| ibm mq operator | vendor | = 3.3.0 | – |
| ibm mq operator | vendor | = 3.4.0 | – |
| ibm mq operator | vendor | = 3.4.1 | – |
| ibm mq operator | vendor | = 3.5.0 | – |
| ibm mq operator | vendor | = 3.5.1 | – |
| ibm mq operator | vendor | = 3.5.2 | – |
| ibm mq operator | vendor | = 3.5.3 | – |
| ibm mq operator | vendor | = 3.6.0 | – |
| ibm mq operator | vendor | = 3.6.1 | – |
| ibm mq operator | vendor | = 3.6.2 | – |
| ibm mq operator | vendor | = 3.6.3 | – |
| ibm mq operator | vendor | = 3.6.4 | – |
| ibm mq operator | vendor | = 3.7.0 | – |
| ibm mq operator | vendor | = 3.7.1 | – |
| ibm mq operator | vendor | = 3.7.2 | – |
| ibm mq operator | vendor | = 3.8.0 | – |
| ibm mq operator | vendor | = 3.8.1 | – |
| ibm mq operator | vendor | = 3.9.0 | – |
| ibm mq operator | vendor | = 3.9.1 | – |
| ibm mq operator | vendor | = 3.9.2 | – |
| ibm mq operator | vendor | = 4.0.0 | – |
| ibm mq operator | vendor | = 4.0.1 | – |
| ibm mq operator | vendor | = 4.0.2 | – |
| ibm mq operator | vendor | = 4.0.3 | – |
| ibm mq operator | vendor | = 4.0.4 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.1.0 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.1.1 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.2.0 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.2.1 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.3.0 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.3.1 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.4.0 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.4.1 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.5.0 | – |
| ibm supplied mq advanced container images | vendor | = 9.4.5.1 | – |
| ibm supplied mq advanced container images | vendor | = 10.0.0.0 | – |
| ibm supplied mq advanced container images | vendor | = 10.0.0.5 | – |
| ibm supplied mq advanced container images | vendor | = 9.3.0.0 | – |
kubectl get csv -A | grep -i mq or the operator's deployed image tagEach row is the first time that source carried this signal. The analyst’s rows are its own findings.
IBM MQ could allow a remote attacker with queue manager control or man-in-the-middle access on unencrypted channels to cause a denial of service in client applications using asynchronous message consumption due to improper validation of queue name length values.
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