Out-of-Bounds Read Vulnerability in IBM MQ
CVE-2026-12669

3.1LOW

Key Information:

Vendor

IBM
Status
MQ Operator
MQ Advanced Container Images
Vendor
CVE Published:
19 October 2026

What is CVE-2026-12669?

IBM MQ contains a vulnerability that could be exploited by an authenticated attacker to trigger an out-of-bounds read. This occurs when malformed compressed data is sent to the system. While the sensitive data is not disclosed during the incident, the request generated by the attacker is rejected, highlighting a potential risk that could affect system integrity and lead to other vulnerabilities.

Affected Version(s)

MQ Advanced container images 9.4.0.6-r1

MQ Advanced container images 9.4.0.6-r2

MQ Advanced container images 9.4.0.7-r1

References

https://www.ibm.com/support/pages/node/7292667
vendor-advisorypatch

CVSS V3.1

Score:
3.1
Severity:
LOW
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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