Information Disclosure in IBM MQ Managed File Transfer
CVE-2026-13271

8.1HIGH

Key Information:

Vendor

IBM
Status
MQ
Vendor
CVE Published:
4 November 2026

What is CVE-2026-13271?

A vulnerability in IBM MQ versions ranging from 9.2.0.0 to 10.0.0.5 LTS and CD allows authenticated attackers to exploit improperly restricted XML external entity references. This can lead to unauthorized access to sensitive information or potential denial of service during command queue processing, posing significant risks for organizations relying on IBM MQ Managed File Transfer.

Affected Version(s)

MQ 9.2.0.0 <= 9.2.0.44

MQ 9.3.0.0 <= 9.3.0.42

MQ 9.4.0.0 <= 9.4.0.26

References

https://www.ibm.com/support/pages/node/7294654
vendor-advisorypatch

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.