XML External Entity Injection in IBM MQ Affecting Multiple Versions
CVE-2026-13275

7.1HIGH

Key Information:

Vendor

IBM
Status
MQ
Vendor
CVE Published:
14 September 2026

What is CVE-2026-13275?

An XML external entity injection vulnerability in IBM MQ allows an authenticated attacker to read arbitrary files on the server or perform server-side request forgery. This issue manifests during the processing of reply messages, impacting several versions and potentially compromising the security of sensitive data.

Affected Version(s)

MQ 9.1.0.0 <= 9.1.0.37 LTS

MQ 9.2.0.0 <= 9.2.0.43 LTS

MQ 9.3.0.0 <= 9.3.0.41 LTS

References

https://www.ibm.com/support/pages/node/7284897
vendor-advisorypatch

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.