What is CVE-2026-13293?

CVE-2026-13293 is a high-severity vulnerability in IBM Mq, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-09-14.

How severe is CVE-2026-13293?

High severity. CVSS v3 base score is 8.8 out of 10.

Deserialization in IBM Mq

CVE-2026-13293

IBM MQ 9.1.0.0 through 9.1.0.37 LTS, 9.2.0.0 through 9.2.0.43 LTS, 9.3.0.0 through 9.3.0.41 LTS, 9.3.0.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.25 LTS, 9.4.0.0 through 9.4.5.1 CD, and 10.0.0.0 could allow a remote authenticated attacker to execute arbitrary code on the system due to the deserialization of untrusted data.

Vulnerability class: Insecure Deserialization

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Ibm Mq — versions 10.0.0.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

psirt@us.ibm.com (vendor-advisory, patch)

Frequently asked questions

What is CVE-2026-13293?: CVE-2026-13293 is a high-severity vulnerability in IBM Mq, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2026-09-14.
How severe is CVE-2026-13293?: High severity. CVSS v3 base score is 8.8 out of 10.