CVE-2026-1713 Overview
CVE-2026-1713 is an authentication bypass vulnerability affecting IBM MQ across multiple Long Term Support (LTS) and Continuous Delivery (CD) releases. The vulnerability is classified under CWE-305 (Authentication Bypass by Primary Weakness), indicating that authentication mechanisms can be circumvented through fundamental flaws in the authentication design or implementation.
IBM MQ versions affected span several major release branches including 9.1.0.0 through 9.1.0.33 LTS, 9.2.0.0 through 9.2.0.40 LTS, 9.3.0.0 through 9.3.0.36 LTS, 9.30.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.17 LTS, and 9.4.0.0 through 9.4.4.1 CD.
Critical Impact
A local attacker with low privileges could bypass authentication mechanisms in IBM MQ, potentially modifying sensitive message queue configurations or data. User interaction is required for successful exploitation.
Affected Products
- IBM MQ 9.1.0.0 through 9.1.0.33 LTS
- IBM MQ 9.2.0.0 through 9.2.0.40 LTS
- IBM MQ 9.3.0.0 through 9.3.0.36 LTS
- IBM MQ 9.30.0 through 9.3.5.1 CD
- IBM MQ 9.4.0.0 through 9.4.0.17 LTS
- IBM MQ 9.4.0.0 through 9.4.4.1 CD
Discovery Timeline
- 2026-03-03 - CVE-2026-1713 published to NVD
- 2026-03-05 - Last updated in NVD database
Technical Details for CVE-2026-1713
Vulnerability Analysis
This vulnerability stems from CWE-305 (Authentication Bypass by Primary Weakness), which indicates a fundamental flaw in how IBM MQ validates authentication credentials or enforces authentication requirements. In enterprise messaging systems like IBM MQ, authentication bypass vulnerabilities are particularly concerning because they can allow unauthorized manipulation of message queues, potentially affecting data integrity across interconnected business applications.
The local attack vector means the attacker must have some level of existing access to the system running IBM MQ. Combined with the requirement for user interaction, the exploitation scenario likely involves social engineering or leveraging an existing local user session. While confidentiality is not directly impacted, the high integrity impact suggests attackers could modify queue configurations, alter messages in transit, or manipulate access control settings within the MQ environment.
Root Cause
The root cause is classified as CWE-305 (Authentication Bypass by Primary Weakness). This weakness occurs when a system's authentication mechanism contains a fundamental design or implementation flaw that allows an attacker to circumvent the authentication process entirely. In the context of IBM MQ, this could manifest through insufficient validation of authentication tokens, improper session handling, or flaws in the authentication protocol implementation that allows credentials to be bypassed under specific conditions.
Attack Vector
The attack requires local access to the affected system with low-privilege credentials. The attacker must also rely on user interaction to successfully exploit this vulnerability. A typical attack scenario might involve:
- An attacker with local system access identifies a vulnerable IBM MQ installation
- The attacker crafts a malicious request or manipulates local configuration files
- Through social engineering or by waiting for user interaction with MQ components, the authentication bypass is triggered
- The attacker gains unauthorized access to modify queue configurations or message data
Due to the local attack vector and user interaction requirement, this vulnerability is less likely to be exploited in automated attacks but remains a significant risk in environments where untrusted users have local system access.
Detection Methods for CVE-2026-1713
Indicators of Compromise
- Unexpected modifications to IBM MQ queue manager configurations without corresponding administrative action logs
- Authentication log entries showing successful access from unusual local accounts or contexts
- Changes to channel security settings or queue permissions without authorized change tickets
- Anomalous MQ process behavior or unexpected child processes spawned by MQ components
Detection Strategies
- Review IBM MQ error logs (AMQERR01.LOG) for unusual authentication patterns or error messages
- Monitor system audit logs for changes to MQ configuration files under the queue manager data directory
- Implement file integrity monitoring on MQ installation directories and configuration paths
- Deploy behavioral analysis to detect unusual access patterns to MQ administrative interfaces
Monitoring Recommendations
- Enable verbose logging for IBM MQ authentication events in production environments
- Configure SIEM alerts for failed authentication attempts followed by successful access from the same local user
- Monitor for unexpected changes to MQ security policies or channel authentication rules
- Review administrative access logs regularly for unauthorized configuration modifications
How to Mitigate CVE-2026-1713
Immediate Actions Required
- Inventory all IBM MQ installations and identify versions within the affected ranges
- Review the IBM Security Advisory for specific patch information
- Apply appropriate patches based on your IBM MQ release stream (LTS or CD)
- Restrict local system access to IBM MQ servers to only essential administrative personnel
Patch Information
IBM has released security patches addressing CVE-2026-1713. Organizations should consult the IBM Security Advisory for detailed patch information specific to their deployed version. Patches are available for both Long Term Support (LTS) and Continuous Delivery (CD) release streams. Apply the appropriate fix pack or interim fix based on your current IBM MQ version.
Workarounds
- Implement strict access controls limiting local system access to IBM MQ servers
- Enable enhanced security features such as connection authentication (CONNAUTH) with external LDAP or other identity providers
- Configure MQ channel authentication rules to restrict queue manager access by IP and user context
- Review and tighten file system permissions on MQ configuration directories
- Consider implementing network segmentation to isolate MQ infrastructure from general user access
# Example: Strengthen MQ queue manager permissions
# Review current permissions
dspmqaut -m QMGR_NAME -t qmgr -p username
# Remove unnecessary local access
setmqaut -m QMGR_NAME -t qmgr -p untrusted_user -remove
# Enable connection authentication
ALTER QMGR CONNAUTH(DEV.AUTHINFO)
REFRESH SECURITY TYPE(CONNAUTH)
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
