CVE-2026-81656 in Guardium Data Protection
Summary
by MITRE • 09/18/2026
IBM Guardium Data Protection 12.2 is vulnerable to a SQL injection vulnerability in the New Query Builder REST Processor. A low-privileged authenticated user can inject SQL statements through the newQueryBuilder REST endpoint, potentially resulting in unauthorized access to data and impact to the confidentiality, integrity, and availability of the affected system.
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Analysis
by VulDB Data Team • 09/18/2026
The IBM Guardium Data Protection version 12.2 contains a critical security flaw within its New Query Builder component, specifically affecting the REST Processor interface used for constructing database queries. This vulnerability is classified as a SQL injection attack, which represents one of the most prevalent and dangerous web application vulnerabilities in modern software ecosystems. The root cause lies in insufficient input validation or improper sanitization of user-supplied data before it is incorporated into dynamic SQL statements executed by the backend database engine. When an attacker interacts with the newQueryBuilder REST endpoint, they can manipulate the structure of these queries rather than simply providing standard query parameters. This architectural weakness allows malicious actors to bypass intended logic and execute arbitrary commands directly against the underlying database infrastructure.
Accessing this vulnerability requires a low-privileged authenticated user account, which significantly lowers the barrier for exploitation compared to unauthenticated attacks. However, even with limited privileges within the application layer, an attacker can leverage SQL injection techniques such as UNION-based extraction or error-based parsing to extract sensitive data from protected tables that would otherwise remain inaccessible due to role-based access controls. The ability to inject arbitrary SQL statements means that confidentiality is severely compromised as attackers can read confidential records including personally identifiable information, financial data, or proprietary business intelligence stored within the database. Furthermore, if the underlying database permissions allow for write operations through stacked queries or specific procedural extensions, integrity and availability are also at risk. Attackers could potentially modify existing records to alter system behavior or delete critical datasets, leading to operational disruptions and loss of trust in the data protection platform itself.
From a classification perspective, this vulnerability aligns with CWE-89 Improper Neutralization of Special Elements used in an SQL Command within the Common Weakness Enumeration framework. It also maps closely to MITRE ATT&CK technique T1059 Command and Scripting Interpreter under sub-technique T1059.004 SQL, which describes how attackers use structured query language commands to interact with backend systems for data exfiltration or manipulation. The exploitation path typically involves crafting specific HTTP requests containing malicious payloads in the request body or parameters associated with the newQueryBuilder endpoint. These payloads are designed to terminate legitimate queries and append additional destructive or extractive instructions that the database engine executes without proper context checks.
Mitigation strategies must focus on both immediate remediation and long-term architectural improvements. The primary defense is for IBM to release a patched version of Guardium Data Protection 12.2 that addresses the input validation logic within the REST Processor. Administrators should apply these updates as soon as they become available through official support channels. In the interim, network-level controls such as Web Application Firewalls can be configured with specific rulesets to detect and block common SQL injection patterns targeting this endpoint. Additionally, implementing strict parameterized queries or prepared statements in future development cycles will prevent dynamic code construction from being vulnerable to injection attacks. Role-based access control policies should also be reviewed to ensure that even if an application-level vulnerability is exploited, the database user account associated with the application has minimal privileges, thereby limiting the potential blast radius of any successful SQL injection attempt.