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9.8

IBM MQ allows remote code execution via JNDI injection

CVE-2026-12351 · published 27 days ago
Summary

Versions of IBM MQ that run the IVT application can be tricked into loading malicious code from outside your network. An attacker could then run any program on the server, potentially compromising data and services. Update to the latest IBM MQ release or apply IBM's provided patch to stop the unsafe lookup behavior.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ibm mq <= 9.3.0.41 LTS
Original advisory text
IBM MQ is vulnerable to unauthenticated remote code execution via JNDI injection
IBM MQ 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 LTS, and 10.0.0.0 could allow a remote attacker to execute arbitrary code due to unsafe JNDI lookup processing when the IVT application is deployed.
References
Fix within
Internet-facing 3 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker full control
Severity
9.8 Critical
Exploitation
<1% chance of attack within 30 days
Type
CWE-74Injection
Timeline
Published15 Sep 2026
Updated11 Oct 2026
First seen15 Sep 2026
Sources
CVE-2026-12351 · NVD
CVE-2026-12351 · MITRE
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