CVE-2026-17244 in API Connect
Summary
by MITRE • 11/07/2026
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 perform unauthorized actions and obtain sensitive information due to missing authorization. Certain operations do not verify that the user is permitted to act on the targeted resource, which could allow other users' API keys to be deleted.
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Analysis
by VulDB Data Team • 11/07/2026
The vulnerability identified in IBM API Connect versions 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 represents a critical failure in access control mechanisms, specifically categorized under CWE-269 Improper Privilege Management or more precisely CWE-862 Missing Authorization. This flaw allows remote authenticated attackers to perform unauthorized actions on resources they do not own or have permission to manage. The core technical issue lies within the application logic that handles API key management operations. When a user initiates an action such as deleting, modifying, or viewing specific API keys, the backend service fails to validate whether the requesting user is the legitimate owner of those credentials or has been explicitly granted administrative privileges over them. This absence of server-side authorization checks means that if an attacker can predict or enumerate valid resource identifiers for other users' API keys, they can interact with these resources directly through crafted HTTP requests without triggering any permission errors.
From a technical perspective, this vulnerability typically manifests in RESTful APIs where the unique identifier for an API key is passed as part of the URL path or request body rather than being securely linked to the authenticated session context via indirect object references that are properly validated. An attacker who has valid credentials for their own account can manipulate these identifiers to target resources belonging to other tenants or users within the same IBM Cloud Pak or on-premises deployment instance. Because API keys serve as primary authentication tokens for downstream services and applications, compromising them effectively grants the attacker full control over the associated identities. This bypasses standard security controls because the system assumes that any authenticated user interacting with a specific resource ID has legitimate rights to do so, ignoring the principle of least privilege which dictates that users should only have access to resources necessary for their role.
The operational impact of this vulnerability is severe and multifaceted. The most immediate consequence is the potential deletion or modification of other users' API keys. If an attacker successfully deletes these keys, it results in a denial of service for legitimate applications relying on those credentials, causing business disruption and requiring manual intervention to regenerate access tokens. More critically, if the vulnerability allows retrieval rather than just destruction, attackers can exfiltrate sensitive authentication material. Possession of another user's API key enables lateral movement within the organization’s infrastructure. The attacker can use these stolen keys to authenticate as that user, potentially accessing internal APIs, reading confidential data stored in connected databases or storage services, and executing commands on behalf of compromised identities. This scenario aligns with MITRE ATT&CK technique T1078 Valid Accounts, where adversaries leverage legitimate credentials to maintain persistence and expand their foothold within the network environment without triggering typical intrusion detection alerts associated with brute-force attacks or credential stuffing.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. The primary defense is applying the vendor-provided security patches that update IBM API Connect to versions beyond 10.0.8.12 and 12.1.1.2, where these authorization checks have been corrected. In environments where patching is not immediately feasible, organizations should implement strict network segmentation to limit access to management interfaces from untrusted networks. Additionally, deploying a Web Application Firewall with rules that detect anomalous patterns in API key manipulation requests can provide an additional layer of defense. From a development and operational standpoint, it is essential to enforce indirect object reference validation on all endpoints handling sensitive resources. This involves ensuring that the system explicitly verifies ownership or administrative rights before processing any delete, update, or read operation on user-specific data. Regular security audits focusing on access control logic and automated testing using tools designed to identify broken object level authorization vulnerabilities are also recommended to prevent similar flaws in future releases.