IBMCVE-2026-12666
IBM MQ: information disclosure
No fix yet
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 Classes for Java could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to XML external entity injection in MQRFH2 header processing.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| MQ Product | >= 9.1.0.0, <= 9.1.0.37 LTS | No fix yet |
| >= 9.2.0.0, <= 9.2.0.43 LTS | No fix yet | |
| >= 9.3.0.0, <= 9.3.0.41 LTS | No fix yet | |
| >= 9.3.0.0, <= 9.3.5.1 CD | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-611