Quick answers
- Is CVE-2026-13289 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-13289 being exploited in the wild.
- How severe is CVE-2026-13289?
- High severity, with a CVSS score of 7.1, published 4 November 2026.
- Which products and versions are affected?
- IBM Mq 10.0.0.0 through 10.0.0.5 LTS and CD.
- Is there a fix for CVE-2026-13289?
- Yes: fixed in IBM MQ 9.2.0.46 LTS, 9.3.0.43 LTS, 9.4.0.30 LTS, 10.0.0.6 LTS, 9.4 CD and 10.0 CD versions 10.0.1.0 and later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
- How is CVE-2026-13289 attacked?
- It is attacked over the network, in a hosted service.
- Am I affected by CVE-2026-13289?
- 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 9.2.0.46 LTS, 9.3.0.43 LTS, 9.4.0.30 LTS, 10.0.0.6 LTS, 9.4 CD and 10.0 CD versions 10.0.1.0 and later
Technical details
IBM MQ's Managed File Transfer component fails to properly restrict XML external entity (XXE) references when processing XML data, allowing an authenticated remote attacker to read arbitrary files or trigger denial of service through billion laughs attacks. The vulnerability requires valid authentication credentials and network access to the MQ service. A fix is available in patched versions across all affected release lines.
Affected products
- IBM MQ 9.2.0.0 through 9.2.0.44 LTS
- IBM MQ 9.3.0.0 through 9.3.0.42 LTS
- IBM MQ 9.4.0.0 through 9.4.0.26 LTS
- IBM MQ 9.4.0.0 through 9.4.5.1 CD
- IBM MQ 10.0.0.0 through 10.0.0.5 LTS and CD
Timeline
- 2026-10-29: disclosed
- 2026-10-29: advisory