CVE-2026-34220: SQL Injection in MikroORM for Node.js

Successful exploitation of CVE-2026-34220 could allow an attacker to bypass application security controls and directly manipulate the underlying database. This could lead to unauthorized data access, modification, or deletion. Depending on the database schema and application logic, an attacker might be able to extract sensitive information like user credentials, financial data, or personally identifiable information (PII). The impact is particularly severe if the database contains critical business data or is used to store sensitive user information. While the specific attack vector requires crafting malicious objects, the potential for widespread data compromise makes this a high-priority vulnerability.

1. Reserved2026-03-26
2. Published2026-03-31
3. Modified2026-04-03
4. EPSS updated2026-04-08

The primary mitigation for CVE-2026-34220 is to upgrade MikroORM to version 6.6.10 or later, which contains the fix. If upgrading is not immediately feasible, consider implementing input validation and sanitization on all user-supplied data used in SQL queries. Web application firewalls (WAFs) configured to detect and block SQL injection attempts can provide an additional layer of defense. Review application code for any instances where user-controlled data is directly incorporated into SQL queries, and ensure proper escaping or parameterization is used. After upgrading, verify the fix by attempting to inject a simple SQL query through a crafted object and confirming that it is properly sanitized and does not execute.