CVE-2026-4593 is a SQL injection vulnerability identified in the erupt framework, specifically in the EruptDataQuery function within the erupt-ai module's MCP Tool Interface. The vulnerability affects versions 1.13.0 through 1.13.3. The root cause is improper handling of user input in the construction of Hibernate queries, which allows an attacker to inject malicious SQL code remotely. This injection can lead to unauthorized data access, modification, or deletion, impacting the confidentiality, integrity, and availability of the underlying database. The vulnerability requires low-level privileges but no user interaction, making it remotely exploitable over the network. The vendor was notified early but has not issued any patches or advisories. Although an exploit is publicly available, there are no confirmed reports of active exploitation in the wild. The CVSS 4.0 base score of 5.3 reflects the medium severity, considering the attack vector is network-based with low complexity and no authentication required, but with limited impact on system-wide security. The lack of vendor response and patch availability increases the risk for organizations relying on this framework. The vulnerability highlights the importance of secure coding practices around ORM frameworks like Hibernate, especially input sanitization and use of parameterized queries.

The SQL injection vulnerability in erupt can lead to unauthorized access to sensitive data, data corruption, or deletion within affected applications. This compromises data confidentiality and integrity, potentially exposing private or proprietary information. Availability may also be impacted if injected queries cause database errors or crashes. Since the flaw is remotely exploitable without user interaction, attackers can automate exploitation to target multiple systems rapidly. Organizations using erupt in critical applications risk data breaches, regulatory non-compliance, and operational disruptions. The absence of vendor patches prolongs exposure, increasing the window for attackers to develop and deploy exploits. The medium severity rating indicates a moderate but tangible threat, especially for environments with sensitive data or high availability requirements. The vulnerability could also serve as a foothold for further attacks within compromised networks.

Given the lack of official patches, organizations should immediately audit all uses of the EruptDataQuery function and related database interactions for unsafe query construction. Developers must implement strict input validation and sanitization to prevent injection of malicious SQL code. Refactoring code to use parameterized queries or prepared statements with Hibernate is critical to eliminate injection vectors. Network-level controls such as firewall rules and intrusion detection systems should be configured to monitor and block suspicious traffic targeting the affected endpoints. Restricting database user privileges to the minimum necessary can limit the impact of a successful injection. Organizations should also consider deploying Web Application Firewalls (WAFs) with custom rules to detect and block SQL injection attempts. Monitoring logs for unusual query patterns or errors can provide early detection of exploitation attempts. Finally, organizations should engage with the vendor or community to track patch releases and apply updates promptly once available.