Quick answers
- Is CVE-2026-14511 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-14511 being exploited in the wild.
- How severe is CVE-2026-14511?
- Medium severity, with a CVSS score of 6.5, published 19 October 2026.
- Which products and versions are affected?
- IBM Mq 9.4.5.0 through 9.4.5.1.
- Is there a fix for CVE-2026-14511?
- Yes: fixed in IBM MQ 10.0.0.0. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-14511 attacked?
- It is attacked over the network.
- Am I affected by CVE-2026-14511?
- Check whether you run IBM Mq at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
How to fix
- Fixed in: IBM MQ 10.0.0.0
Technical details
A resource allocation vulnerability (CWE-770) in the IBM MQ C client library allows an authenticated user to trigger uncontrolled resource consumption via a specially crafted message, causing the consuming application to crash. The attack requires network access and valid authentication credentials; no user interaction is needed. A fix is available in IBM MQ 10.0.0.0.
Affected products
- IBM MQ 9.4.5.0 through 9.4.5.1
Timeline
- 2026-10-19: disclosed