CVE-2026-11726
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
IBM MQ for HPE NonStop versions 8.1.0 through 8.1.0.40 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header offset values.
Risk Assessment
An authenticated attacker could access confidential data or disrupt service, potentially leading to information security breaches.
Recommendation
Upgrade IBM MQ to a patched version or restrict access to the system for authenticated users.
Other vulnerabilities in IBM MQ
See all- CVE-2026-12351Critical
IBM MQ versions 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 LTS, and 10.0.0.0 could allow a remote attacker to execute arbitrary code due to unsafe JNDI lookup processing when the IVT application is deployed.
- CVE-2026-11727High
IBM MQ for HPE NonStop versions 8.1.0 through 8.1.0.40, C client, could allow a remote attacker to cause a denial of service or potentially execute arbitrary code due to improper validation of queue manager responses when requesting AMS policy data.
- CVE-2026-11725High
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in MQINQ request processing.
- CVE-2026-11716High
IBM MQ for HPE NonStop versions 8.1.0 through 8.1.0.40 could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code during queue manager startup due to improper validation of cluster migration data.
- CVE-2026-11381High
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to improper validation of message distribution list structures.
- CVE-2026-11378High
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to an integer overflow in distribution list processing.
- CVE-2026-11375High
IBM MQ contains a stack buffer overflow when processing XA transaction identifiers. An authenticated attacker could exploit this to cause a denial of service or potentially execute arbitrary code.
- CVE-2026-10853High
IBM MQ improperly validates cluster command message lengths. An authenticated attacker with cluster access could cause a denial of service or potentially execute arbitrary code.
- CVE-2026-10575High
IBM MQ contains a heap buffer overflow when processing MQPUT operations with malformed distribution headers. An authenticated attacker could cause a denial of service or potentially escalate privileges.
- CVE-2026-10027High
IBM MQ contains a buffer overflow when processing malformed compressed data on channels configured with compression enabled. A remote attacker could cause a denial of service or execute arbitrary code.
Original NVD description (English source)
IBM MQ for HPE NonStop 8.1.0 through 8.1.0.40 could allow an authenticated attacker to obtain sensitive information or cause a denial of service due to improper validation of message header offset values.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS