Key points
- CVE-2026-92559 affects IBM App Connect Enterprise versions 13.0.1.0 through 13.0.8.2.
- The vulnerability carries a CVSS score of 9.8, rated as critical severity.
- Remote attackers can obtain sensitive information due to binding to an unrestricted IP address.
Remote attackers can obtain sensitive information from IBM App Connect Enterprise systems. The National Vulnerability Database lists this issue as critical. The flaw exists in how the software handles network connections. Specifically, binding to an unrestricted IP address allows data exposure. This affects versions 13.0.1.0 through 13.0.8.2. Managed service providers should review their environments immediately. The risk is high because the attack vector is remote. The weakness is classified under CWE-1327.
In plain English
The software listens for connections on any available IP address. This means it accepts traffic from anywhere on the network. An attacker does not need to be on the same local machine. They can reach the service from a remote location. The system fails to restrict which IP addresses can bind to the service. This allows outsiders to interact with the application directly. Sensitive data is then exposed to these remote requests. The issue is related to network bindings. It allows the service to accept connections it should not. The vulnerability is described as allowing remote attackers to obtain sensitive information.
The background
IBM App Connect Enterprise is an integration platform. It allows organisations to connect different applications and data sources. The vulnerability was identified in recent versions of the software. Versions up to 13.0.8.2 are affected by this flaw. The Common Weakness Enumeration identifies this as CWE-1327. This category covers improper restriction of operations. The specific issue here is unrestricted IP binding. This allows the service to accept connections it should not. The CVSS score is 9.8. It is rated as critical severity.
What changes now
Organisations using IBM App Connect Enterprise must assess their risk. They need to check which versions they are running. If they are using versions up to 13.0.8.2, they are vulnerable. The National Vulnerability Database confirms the critical rating. Service providers should inform their clients of this risk. They should review network configurations immediately. The goal is to prevent sensitive information theft. Teams should monitor for unusual network traffic patterns. This helps detect potential exploitation attempts.
The attacker's path
Attackers look for services listening on all interfaces. They scan for open ports on public or private networks. Once found, they send requests to the exposed service. The weakness allows these requests to reach the application. This bypasses network segmentation controls. The attacker gains access to sensitive information. This stage serves as initial access or reconnaissance. Teams usually check firewall rules and binding configurations. Ensure services only listen on specific, trusted interfaces. Verify that network policies restrict external access. Monitor logs for connection attempts from unknown sources.
What to do and how to stay safe: IBM App Connect Enterprise
- Check if your environment runs IBM App Connect Enterprise versions 13.0.1.0 to 13.0.8.2.
- Review network bindings to ensure services do not listen on unrestricted IP addresses.
- Monitor network traffic for unexpected connections to integration platforms.
- Implement strict firewall rules to limit access to sensitive services.
Step-by-step guide: Emergency Patching: Correcting Five Common Operational Errors
General security guidance from the RedTeam Log newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
Which versions of IBM App Connect Enterprise are affected?
Versions 13.0.1.0 through 13.0.8.2 are affected by CVE-2026-92559.
What is the severity of this vulnerability?
The CVSS score is 9.8, which is rated as critical.
What does CWE-1327 mean in this context?
It refers to the improper restriction of operations, specifically unrestricted IP binding.
