CVE-2026-17336 in API Connect
Summary
by MITRE • 11/07/2026
IBM API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to execute arbitrary SQL commands due to improper neutralization of special elements used in an SQL command.
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Analysis
by VulDB Data Team • 11/07/2026
The vulnerability identified within IBM API Connect versions 12.1.0.0 through 12.1.1.2 represents a critical security flaw rooted in the application's handling of user-supplied input during database query construction. This issue is classified as an SQL Injection, which corresponds to CWE-89: Improper Neutralization of Special Elements used in an SQL Command in the Common Weakness Enumeration taxonomy. The core technical failure lies in the insufficient sanitization or parameterization of data inputs before they are concatenated into dynamic SQL statements executed by the backend database management system. When a remote authenticated attacker interacts with specific API endpoints, they can inject maliciously crafted SQL syntax that alters the intended logic of the query. Because the application fails to properly distinguish between code and data in these queries, the injected commands are interpreted as executable instructions rather than literal input values.
The operational impact of this vulnerability is severe due to its potential for arbitrary command execution within the context of the database server. An attacker who has successfully authenticated into the API Connect environment can leverage this flaw to bypass authentication controls, extract sensitive data such as customer credentials or proprietary business logic stored in the backend databases, modify or delete critical records, and potentially escalate privileges if the database service account possesses elevated permissions. In some configurations, depending on the specific Database Management System and its configuration settings, successful exploitation could even lead to remote code execution on the underlying host system by writing files or executing operating system commands through database-specific features such as xp_cmdshell in Microsoft SQL Server or similar functions in other platforms. This compromises the confidentiality, integrity, and availability of the entire API management infrastructure managed by IBM API Connect.
This type of vulnerability is frequently associated with ATT&CK technique T1059: Command and Scripting Interpreter, specifically when the injection leads to OS-level command execution, as well as T1190: Exploit Public-Facing Application, given that the attack vector originates from a network-accessible service. The requirement for authentication does not mitigate the risk significantly in enterprise environments where insider threats or compromised credentials are common vectors for initial access. Attackers often use automated tools to probe for such injection points by testing input fields with standard SQLi payloads like single quotes or UNION-based statements to determine if error messages reveal database structure, thereby facilitating further exploitation.
To mitigate this vulnerability, organizations must apply the specific patch provided in IBM API Connect version 12.1.1.3 and later releases, which addresses the underlying code defects responsible for improper input handling. Beyond immediate patching, developers should enforce strict parameterized queries or prepared statements for all database interactions to ensure that user input is always treated as data rather than executable code. Input validation strategies should be implemented at multiple layers, including web application firewalls and API gateways, to filter out known malicious patterns before they reach the backend logic. Additionally, adhering to the principle of least privilege ensures that even if an injection occurs, the database account used by the application has minimal permissions, thereby limiting the potential damage scope. Regular security code reviews and static analysis tools focused on SQLi detection should be integrated into the development lifecycle to prevent similar defects in future updates.