External risk intelligence

IBM API Connect Default Credentials Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2026-3144

IBM API Connect is an API gateway and management solution designed to be positioned at the network edge to facilitate, secure, and manage external-facing API traffic. As a gateway, it is typically deployed to be reachable from the internet, making the exposure of its management or access components highly likely in normal operational configurations.

Halo Surface Signal: 5 out of 5 — more likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory highlights a critical vulnerability in IBM API Connect related to default credentials. If not addressed, an attacker could exploit this weakness to gain unauthorized access before a proper credential update is enforced, potentially compromising the application's integrity and data.

  • Default credentials grant unauthorized access.
  • Protects API management and sensitive data.
  • Confirm relevance and manage credentials.

Attack Path

How an attacker could exploit the issue

An attacker can exploit this vulnerability by accessing the IBM API Connect system over the network without needing any credentials. This is possible because the system initially uses default credentials, allowing unauthorized access before a proper credential update is enforced. Once accessed, the attacker could potentially gain a high level of control over the application.

  • Attacker can reach the system externally.
  • Attacker triggers vulnerability with default credentials.
  • Risk includes unauthorized access and control.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an attacker to gain unauthorized access to the IBM API Connect application by exploiting default credentials before they are updated. This access could potentially lead to the compromise of sensitive information, disruption of services, or unauthorized modifications to the API management environment.

  • Unauthorized access to API management.
  • Exploiting default credentials.
  • Compromise of service integrity.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in IBM API Connect likely impacts platform or infrastructure teams responsible for API gateways and management solutions. The first step is to identify all instances of the affected software, determine their exposure and criticality, and locate the accountable owners for each. Remediation planning should then be prioritized based on these findings.

  • Identify and confirm accountable owners.
  • Verify reachability and business criticality.
  • Plan and coordinate remediation efforts.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is IBM API Connect?

IBM API Connect is an enterprise-grade platform used to create, manage, secure, and monitor APIs across cloud and on-premises environments. It serves as an API gateway, acting as a traffic controller that ensures requests are routed correctly and securely. Organizations rely on it to expose their digital services to developers and partners while protecting the underlying data and systems from unauthorized traffic.

What does CWE-1392 mean for CVE-2026-3144?

CWE-1392 refers to the use of default credentials, a security weakness where a system ships with built-in, predictable usernames and passwords. In the context of CVE-2026-3144, this means the software is essentially left 'unlocked' by default. If these credentials remain unchanged upon initial deployment, the system cannot verify the identity of the user, allowing anyone to bypass authentication and gain full control over the application before a secure update is enforced.

How can an attacker trigger this vulnerability?

An attacker triggers this vulnerability by attempting to connect to the IBM API Connect interface over a network using the known default credentials. The flaw exists specifically because the system fails to force a password change during the initial setup. This does not trigger if the system has already been configured with custom, secure credentials, as the default entry point would no longer be active or valid for an unauthorized party.

Is my instance affected by this vulnerability?

According to Halo Surface Signal, IBM API Connect is designed to sit at the network edge to manage external-facing traffic, making it a highly visible target. If your deployment is reachable from the internet, the likelihood of unauthorized access via these default credentials is significantly higher. You should assume relevance if your instance resides in an environment where it accepts connections from external networks, as this increases its accessibility to potential threats.

What should I do first to address this?

Your immediate priority is to locate all active IBM API Connect instances within your infrastructure and confirm whether the default account credentials have been changed. Coordinate with the platform owners for each instance to verify their configuration status. If any instance is still using default settings, prioritize updating these credentials immediately to secure the system against unauthorized access.

References