CVE-2026-12667 — IBM MQ .NET client is vulnerable to XML external entity injection

Description (CNA)

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 authenticated attacker to read files from a vulnerable .NET client or cause limited denial of service due to improper handling of XML external entities in RFH2 folder parsing.

Affected (CNA)

Vendor / product	Versions
IBM / MQ	affected 9.1.0.0 through 9.1.0.37 LTS; affected 9.2.0.0 through 9.2.0.43 LTS; affected 9.3.0.0 through 9.3.0.41 LTS; affected 9.3.0.0 through 9.3.5.1 CD; affected 9.4.0.0 through 9.4.0.25 LTS; affected 9.4.0.0 through 9.4.5.1 CD; affected 10.0.0.0

CWE

CWE-611

References

https://www.ibm.com/support/pages/node/7284936

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.