CVE-2026-12356
High
Description
IBM MQ 9.2.0.0 through 9.2.0.44 LTS, 9.3.0.0 through 9.3.0.42 LTS, 9.4.0.0 through 9.4.0.26 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 through 10.0.0.5 LTS and CD could allow an authenticated user with command queue access to execute arbitrary code by injecting malicious arguments into Ant script commands.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Ibm Mq
PublishedNov 4, 2026
First seenNov 4, 2026
Weakness typeCWE-74Injection
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ibm mq | 9.2.0.0 ≤ v ≤ 9.2.0.44, 9.3.0.0 ≤ v ≤ 9.3.0.42, 9.4.0.0 ≤ v ≤ 9.4.0.26, 9.4.0.0 ≤ v ≤ 9.4.5.1, 10.0.0.0 ≤ v ≤ 10.0.0.5 | — |
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