CVE-2026-12355: CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in IBM MQ
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 attacker to perform JNDI injection attacks due to insufficient input validation, potentially leading to information disclosure or remote code execution.
AI Analysis
Technical Summary
IBM MQ versions 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 contain a vulnerability classified as CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). This flaw allows attackers to perform JNDI injection attacks due to insufficient input validation, potentially resulting in information disclosure or remote code execution. The CVSS v3.1 base score is 8.1, indicating high severity with network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthenticated attacker to perform JNDI injection attacks, potentially leading to disclosure of sensitive information or remote code execution on the affected IBM MQ systems. This compromises confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict network access to IBM MQ services and monitor for suspicious activity related to JNDI usage. Follow IBM's official guidance once published.
CVE-2026-12355: CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') in IBM MQ
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 attacker to perform JNDI injection attacks due to insufficient input validation, potentially leading to information disclosure or remote code execution.
CVSS v3.1
Score 8.1high
Affected software
IBM
MQ
pkg:maven/com.ibm.mq/mqcpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.1.0.37:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.2.0.43:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*cpe:2.3:a:ibm:mq:9.3.0.41:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
IBM MQ versions 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 contain a vulnerability classified as CWE-74 (Improper Neutralization of Special Elements in Output Used by a Downstream Component). This flaw allows attackers to perform JNDI injection attacks due to insufficient input validation, potentially resulting in information disclosure or remote code execution. The CVSS v3.1 base score is 8.1, indicating high severity with network attack vector, high attack complexity, no privileges required, no user interaction, and high impact on confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability could allow an unauthenticated attacker to perform JNDI injection attacks, potentially leading to disclosure of sensitive information or remote code execution on the affected IBM MQ systems. This compromises confidentiality, integrity, and availability of the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the IBM vendor advisory for current remediation guidance. No official fix or patch links are provided in the available data. Until a patch is available, restrict network access to IBM MQ services and monitor for suspicious activity related to JNDI usage. Follow IBM's official guidance once published.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- ibm
- Date Reserved
- 2026-06-15T21:47:43.112Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa9812d55bf5e2cf527c2c2
Added to database: 09/15/2026, 17:32:29 UTC
Last enriched: 09/15/2026, 17:47:28 UTC
Last updated: 09/16/2026, 03:03:37 UTC
Views: 8
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