CVE-2026-11729

IBM MQ Java messaging is vulnerable to remote code execution

HIGH
8.5
CVSS Score
Published: September 15, 2026 at 05:31 PM UTC
Updated: September 16, 2026 at 07:34 PM UTC
1 product affected across 1 vendorMQ

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Severity
HIGH8.5
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

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 an authenticated attacker to execute arbitrary code in client applications due to unsafe deserialization that enables JNDI injection attacks.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

9.1.0.0 ≤ v ≤ 9.1.0.37 LTS9.2.0.0 ≤ v ≤ 9.2.0.43 LTS9.3.0.0 ≤ v ≤ 9.3.0.41 LTS9.3.0.0 ≤ v ≤ 9.3.5.1 CD9.4.0.0 ≤ v ≤ 9.4.0.25 LTS9.4.0.0 ≤ v ≤ 9.4.5.1 CD10.0.0.09.1.0.09.1.0.379.2.0.09.2.0.439.3.0.09.3.0.419.3.5.19.4.0.09.4.0.259.4.5.1

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

Vendor AdvisoryPatch
Source: cverecord
https://www.ibm.com/support/pages/node/7284941

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.5HIGHibm
Attack Vector
NETWORK
Complexity
HIGH
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-502

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