CVE-2026-34220 MikroORM is vulnerable to SQL Injection via specially crafted object
Attackers can execute arbitrary SQL commands via crafted objects in MikroORM, potentially reading or modifying database contents.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-34220?
CVE-2026-34220 is a critical SQL injection vulnerability in mikro-orm, published on 31 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
MikroORM is a TypeScript ORM for Node.js based on Data Mapper, Unit of Work and Identity Map patterns. Prior to versions 6.6.10 and 7.0.6, there is a SQL injection vulnerability when specially crafted objects are interpreted as raw SQL query fragments. This issue has been patched in versions 6.6.10 and 7.0.6.
Weakness: CWE-89
Which versions are affected by CVE-2026-34220?
4 open source packages ship an affected version, including @mikro-orm/core. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@mikro-orm/core npm | All versions | 6.6.10 |
@mikro-orm/core npm | All versions | 6.6.10 |
@mikro-orm/core npm | From 7.0.0-dev.0 | 7.0.6 |
@mikro-orm/core npm | From 7.0.0-dev.0 | 7.0.6 |
Products include Mikro-Orm Mikroorm.
How do I fix CVE-2026-34220?
Upgrade @mikro-orm/core to a fixed version for your release line: 6.6.10 or 7.0.6.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-34220 being exploited?
There is no known exploitation of CVE-2026-34220 in the wild and no public exploit code.
Public exploit code: 2 proofs of concept on GitHub.
Other vulnerabilities in mikro-orm
Sources
Also known as GHSA-gwhv-j974-6fxm.