[ CVE-2026-12538 · Published 4 Nov 2026 ]
Vulnerability in IBM MQ Appliance
CVSS 5.4
No fix listed yet
[ Description ]Official description
IBM MQ 9.4.0.0 to 9.4.0.26, 9.4.1.0 to 9.4.5.3, and 10.0.0.1 to 10.0.0.5 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header structure length fields.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.