---
id: CVE-2026-11726
title: >-
  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.
summary: >-
  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.
severity: high
cvss: 8.1
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H'
cwe:
  - CWE-125
vendor: IBM
product: MQ for HPE NonStop
affected:
  - mq_for_hpe_nonstop >= 8.1.0 <= 8.1.0.40
published: '2026-09-18'
updated: '2026-09-22'
sourceUpdated: '2026-09-22T19:32:25.730'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-11726'
references:
  - url: 'https://www.ibm.com/support/pages/node/7287707'
    label: psirt@us.ibm.com
tags:
  - nvd
  - cve.org
epss: 0.00325
epssPercentile: 0.23025
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-19T13:36:53.709317Z'
ingestedAt: '2026-09-18T19:49:30.597Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.