CVE-2026-53751 in DataEase
Summary
by MITRE • 07/07/2026
DataEase is an open source data visualization and analysis tool. Prior to 2.10.24, the H2 database JDBC URL validation logic can be bypassed with special Unicode characters whose case-conversion behavior differs between DataEase validation and H2 parsing, allowing attackers to smuggle dangerous parameters such as init in malicious H2 JDBC connection strings and achieve arbitrary code execution. This issue is fixed in version 2.10.24.
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Analysis
by VulDB Data Team • 07/07/2026
The vulnerability in DataEase affects versions prior to 2.10.24 and stems from a critical flaw in the H2 database JDBC URL validation mechanism. This weakness enables attackers to bypass input sanitization through the strategic use of Unicode characters that exhibit different case conversion behaviors between DataEase's validation logic and the H2 database parser. The vulnerability operates at the intersection of input validation and parameter parsing, creating a path for malicious code execution through carefully crafted JDBC connection strings.
The technical exploitation leverages Unicode character properties where certain special characters behave differently when converted to uppercase or lowercase within the DataEase validation layer compared to how the H2 database engine processes these same characters during parsing. This discrepancy allows attackers to inject dangerous parameters such as the init parameter into JDBC connection strings, which can trigger arbitrary code execution on the target system. The flaw specifically targets the validation logic that should prevent unsafe database connection configurations from being processed.
From an operational perspective, this vulnerability represents a severe security risk for organizations using DataEase versions below 2.10.24 as it provides attackers with a direct path to execute arbitrary commands on systems hosting the data visualization platform. The impact extends beyond simple data access violations to full system compromise, particularly when the application runs with elevated privileges or when database connections are configured with dangerous initialization parameters that can execute scripts or load malicious libraries.
The vulnerability demonstrates characteristics consistent with CWE-20 Improper Input Validation and CWE-94 Improper Control of Generation of Code, where insufficient validation allows malicious input to be interpreted as executable code. From an ATT&CK framework perspective, this maps to T1059 Command and Scripting Interpreter and T1190 Exploit Public-Facing Application, representing a remote code execution vector through application-level input manipulation. The fix implemented in version 2.10.24 addresses the core validation logic by ensuring consistent Unicode character handling between the validation layer and database parsing components.
Organizations should immediately upgrade to DataEase 2.10.24 or later to remediate this vulnerability, as no effective workarounds exist for the underlying validation bypass mechanism. The fix likely involves implementing stricter Unicode normalization and case conversion consistency checks within the JDBC URL parsing logic, ensuring that all special characters are handled identically across both validation and execution contexts. Security teams should also monitor for any potential exploitation attempts in network logs or application audit trails, as this vulnerability could be actively exploited in the wild given its remote code execution capabilities.