CVE-2026-84893 in Guardium Data Protection
Summary
by MITRE • 09/25/2026
IBM Guardium Data Protection 12.2 is vulnerable to SQL injection in the PESI service. An authenticated attacker could exploit this vulnerability to access sensitive information in the internal database.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 09/25/2026
The IBM Guardium Data Protection version 12.2 contains a critical security flaw within its Policy Enforcement Service Interface, commonly referred to as the PESI service. This component is responsible for handling policy enforcement requests and managing interactions between various modules of the data protection suite. The vulnerability manifests as an SQL injection weakness, which arises from insufficient sanitization or validation of user-supplied input before it is incorporated into dynamic database queries. In a typical secure implementation, any external data entering the application layer must be strictly validated against expected formats, types, and lengths to prevent malicious code execution within the backend database engine. However, in this specific instance, the PESI service fails to adequately filter special characters or escape sequences that could alter the structure of SQL commands intended for internal processing.
This flaw allows an authenticated attacker to manipulate these queries by injecting arbitrary Structured Query Language statements. Because the vulnerability resides in a component accessible only after authentication, the threat actor must first possess valid credentials within the IBM Guardium environment. Once authenticated, the attacker can craft specific HTTP requests or API calls containing malicious payloads designed to exploit the parsing logic of the database interface. By carefully constructing these inputs, an adversary can bypass intended query constraints and execute commands that were not originally planned by the application developers. This capability effectively grants the attacker a direct conduit into the internal database infrastructure underlying the Guardium platform.
The operational impact of this vulnerability is severe due to the nature of the data managed by IBM Guardium Data Protection. The system typically stores sensitive metadata, audit logs, configuration details, and potentially credentials or keys related to protected databases. Successful exploitation enables an attacker to perform unauthorized read operations on these internal tables. This could lead to the exfiltration of highly confidential information, including database connection strings, user account details, and historical access patterns that reveal organizational security posture. Furthermore, depending on the specific capabilities enabled in the underlying Database Management System, such as stacked queries or out-of-band data extraction techniques, an attacker might potentially modify or delete critical configuration records, thereby disrupting the integrity of the data protection mechanisms themselves.
From a classification perspective, this vulnerability aligns with CWE-89, which describes Improper Neutralization of Special Elements used in an SQL Command, commonly known as SQL Injection. The attack vector is categorized under ATT&CK technique T1059, specifically command and script interpretation via database commands, although the primary impact here focuses on data exfiltration rather than full system compromise through operating system-level execution. The requirement for authentication places this within the context of privilege escalation or insider threat scenarios where a compromised user account is leveraged to pivot deeper into the infrastructure.
To mitigate this risk, organizations running IBM Guardium Data Protection 12.2 must immediately apply the vendor-provided security patches and updates that address the input validation logic in the PESI service. It is imperative to verify that all components of the suite are updated to a version where this specific SQL injection vector has been remediated through proper parameterization or strict whitelisting of inputs. In addition to patching, administrators should enforce rigorous access controls by ensuring that only essential personnel have administrative privileges within the Guardium environment. Implementing multi-factor authentication for all user accounts adds an additional layer of defense against credential theft, which is often a precursor to such exploitation attempts. Network segmentation can also help limit lateral movement if an attacker gains initial foothold via this vulnerability, restricting their ability to interact directly with backend database services from compromised endpoints. Continuous monitoring and logging should be enhanced to detect anomalous query patterns that may indicate ongoing exploitation attempts against the PESI interface.