Description

IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to gain elevated privileges due to improper authentication.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "9.9",
  "pubDate": "2026-11-07T05:18:28.853Z",
  "pubdate": "2026-11-07T05:18:28.853Z",
  "executiveSummary": "IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 are susceptible to a security vulnerability stemming from improper authentication mechanisms.\nThis vulnerability facilitates privilege escalation, allowing a remote authenticated attacker to acquire elevated permissions within the API Connect environment that exceed their initially assigned authorization scope.\nThe flaw compromises the principle of least privilege, potentially granting unauthorized users administrative control over API management functions, gateway configurations, or sensitive data assets.\nThe risk is critical for multi-tenant environments or systems where role-based access control (RBAC) is the primary security boundary.\nExploitation requires the attacker to possess a legitimate, low-privileged authentication session, after which they can leverage the authentication bypass or processing error to modify their security context.\nSuccessful exploitation poses significant threats to data integrity, system confidentiality, and service availability, necessitating prompt remediation efforts by affected organizations.",
  "technicalDetails": "The vulnerability is rooted in an improper authentication handling flaw within the IBM API Connect software stack. The underlying issue concerns how the application validates user identity and authorization claims during specific request processing cycles. In affected versions, the system fails to adequately verify the integrity or the permissible scope of a user's session tokens or associated security attributes when specific administrative API endpoints are accessed.\nThe attack flow begins with the adversary establishing a baseline authenticated connection to the API Connect platform. Because the authentication module fails to strictly enforce authorization boundaries during the processing of certain HTTP requests, the attacker can submit crafted requests that manipulate parameters or headers intended to define the user's role and privileges. The system processes these requests without performing secondary validation against the central security registry, essentially trusting the supplied, manipulated data.\nThis leads to an escalation of privileges where the attacker's session is upgraded from a standard user role to a highly privileged one, such as an administrator. Once escalated, the attacker gains the ability to execute unauthorized functions within the management plane. This may include, but is not limited to, modifying API definitions, accessing encrypted credentials, altering gateway configurations, or intercepting traffic flowing through the API management infrastructure.\nThe vulnerability is identified within the component responsible for session management and authorization enforcement. The affected versions include IBM API Connect 10.0.8.0-10.0.8.12 and 12.1.0.0-12.1.1.2. Because the flaw is accessible via remote network requests, it does not require local system access or physical interaction with the host environment. The primary prerequisite is that the attacker must have successfully authenticated as a legitimate user, albeit with restricted access rights.\nPost-exploitation, the attacker can leverage these elevated privileges to move laterally within the infrastructure or perform persistent changes that maintain their privileged status even after initial sessions are terminated. By bypassing the intended RBAC constraints, the attacker essentially circumvents the platform's security policy enforcement, rendering existing role definitions ineffective for the duration of the compromised session. The impact is significant as it undermines the trust boundary of the API management platform, potentially exposing the entire ecosystem of managed APIs to manipulation and unauthorized data exfiltration."
}