CVE Catalog

CVE-2026-12148

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.30%

22th percentile - higher than 22% of all known CVEs

Summary

IBM MQ Operator could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to unrestricted Java deserialization in the MQ Classes for Java. The vulnerability occurs in the Java deserialization mechanism.

Risk Assessment

An authenticated attacker can cause a denial of service or execute arbitrary code, potentially impacting availability and integrity of the system. The risk affects environments with IBM MQ Operator and MQ Classes for Java.

Recommendation

Update IBM MQ Operator to the latest version containing the fix. Restrict access to IBM MQ Operator management interfaces to trusted users.

Related vulnerabilities

Original NVD description (English source)

IBM MQ Operator could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to unrestricted Java deserialization in the MQ Classes for Java.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS