IBM MQ Heap Buffer Overflow in MQPUT1 Leading to Arbitrary Code Execution
CVE-2026-10574 Published on October 19, 2026

IBM MQ Buffer Overflow
IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow when processing MQPUT or MQPUT1 operations with malformed message handle properties.

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-10574 is exploitable with network access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to be very high.

Attack Vector:
NETWORK
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
HIGH

Weakness Type

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().


Products Associated with CVE-2026-10574

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IBM Mq Operator
 
IBM Mq Advanced Container Images
 

Affected Versions

IBM MQ Operator: IBM MQ Advanced container images: