CVE-2026-12355

High

Description

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow an attacker to perform JNDI injection attacks due to insufficient input validation, potentially leading to information disclosure or remote code execution.

SeverityHigh
CVSS8.1
Exploit probability—
ProductIbm Mq
PublishedSep 15, 2026
First seenSep 15, 2026
Weakness typeCWE-74Injection

How to fix

Affected products

ProductAffected versionsFixed in
ibm mq9.1.0.0 ≤ v ≤ 9.1.0.37 LTS, 9.2.0.0 ≤ v ≤ 9.2.0.43 LTS, 9.3.0.0 ≤ v ≤ 9.3.0.41 LTS, 9.3.0.0 ≤ v ≤ 9.3.5.1 CD, 9.4.0.0 ≤ v ≤ 9.4.0.25 LTS, 9.4.0.0 ≤ v ≤ 9.4.5.1 CD, 10.0.0.0—

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