CVE-2026-12550

Medium

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 attacker to obtain sensitive information or cause a denial of service due to improper validation of message selection parameters.

SeverityMedium
CVSS5.4
Exploit probability—
ProductIbm Mq
PublishedNov 4, 2026
First seenNov 4, 2026
Weakness typeCWE-122CWE-122

How to fix

Affected products

ProductAffected versionsFixed in
ibm mq9.2.0.0 ≤ 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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