CVE-2026-12666

HIGHCVSS 8.1

Description

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.

Timeline

Published:September 15th, 2026 6:17 PM

Last modified:September 16th, 2026 7:22 PM

CVSS Scoring

CVSS v3: 8.1 (HIGH)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Weaknesses (CWE)

CWE-611

References & Reports

Advisories, patches, and third-party reports

https://www.ibm.com/support/pages/node/7284939

Source: NIST NVD · Data may lag official sources by up to one minute