DataEase is Vulnerable to H2 JDBC RCE Bypass

DataEase is an open source data visualization analysis tool. Versions 2.10.19 and below have inconsistent Locale handling between the JDBC URL validation logic and the H2 JDBC engine's internal parsing. DataEase uses String.toUpperCase() without specifying an explicit Locale, causing its security checks to rely on the JVM's default runtime locale, while H2 JDBC always normalizes URLs using Locale.ENGLISH. In Turkish locale environments (tr_TR), Java converts the lowercase letter i to İ (dotted capital I) instead of the standard I, so a malicious parameter like iNIT becomes İNIT in DataEase's filter (bypassing its blacklist) while H2 still correctly interprets it as INIT. This discrepancy allows attackers to smuggle dangerous JDBC parameters past DataEase's security validation, and the issue has been confirmed as exploitable in real DataEase deployment scenarios running under affected regional settings. The issue has been fixed in version 2.10.20.

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大小写敏感处理不恰当

DataEase 安全漏洞

DataEase是DataEase开源的一个开源的数据可视化分析工具。用于帮助用户快速分析数据并洞察业务趋势，从而实现业务的改进与优化。 DataEase 2.10.19及之前版本存在安全漏洞，该漏洞源于JDBC URL验证逻辑与H2 JDBC引擎内部解析之间存在区域设置处理不一致，可能导致绕过安全验证。

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