# CVE-2026-11726

Authenticated header-offset flaw in IBM MQ (HPE NonStop) allows data disclosure or DoS

- Page: https://www.vulneraibility.com/cve/CVE-2026-11726
- CVSS: 8.1
- Known exploited: not in CISA KEV as of our last sync
- EPSS: 0.46% (percentile 40.1)
- CISA SSVC: exploitation none, automatable no, technical impact partial (assessed 2026-09-19)
- Weakness: CWE-125
- Published: 2026-09-18

## Affected versions

- IBM MQ for HPE NonStop: affected >= 8.1.0 and <= 8.1.0.40

A version outside these ranges is not a statement that it is unaffected.

## Impact

Authenticated attacker can craft messages to read sensitive memory or crash the MQ service (denial of service).

## Action

Patch when possible

## Recommendation

Apply IBM patch per advisory; restrict MQ access and enforce strong authentication.

## References

- [patch] https://www.ibm.com/support/pages/node/7287707

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.