CVE-2026-34220
MikroORM is vulnerable to SQL Injection via specially crafted object
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
MikroORM is vulnerable to SQL Injection via specially crafted object
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.
- Record
CVE-2026-34220- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-89
- Updated
- 2026-11-02
EUVDEUVD-2026-17486
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.
- Record
EUVD-2026-17486- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-gwhv-j974-6fxm
MikroORM is vulnerable to SQL Injection via specially crafted object
Summary
MikroORM versions <= 6.6.9 and <= 7.0.5 are vulnerable to SQL injection when specially crafted objects are interpreted as raw SQL query fragments.
Impact
If user-controlled input is passed directly to MikroORM query construction APIs, an attacker may inject raw SQL fragments. This can lead to SQL injection depending on the database and query being executed.
Affected usage
The issue occurs when untrusted objects are passed to ORM write APIs such as:
wrap(entity).assign(userInput)followed byem.flush()em.nativeUpdate()em.nativeInsert()em.create()followed byem.flush()
Applications that validate input types or enforce strict schema validation before passing data to MikroORM are not affected.
Fix
The vulnerability was caused by duck-typed detection of internal ORM marker properties.
The fix replaces these checks with symbol-based markers that cannot be reproduced by user input.
- Record
GHSA-gwhv-j974-6fxm- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-89
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-34220- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-89
- Updated
- 2026-11-02
OSV
MikroORM is vulnerable to SQL Injection via specially crafted object
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.
- Record
CVE-2026-34220- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-89
- Updated
- 2026-11-02
OSVGHSA-gwhv-j974-6fxm
MikroORM is vulnerable to SQL Injection via specially crafted object
Summary
MikroORM versions <= 6.6.9 and <= 7.0.5 are vulnerable to SQL injection when specially crafted objects are interpreted as raw SQL query fragments.
Impact
If user-controlled input is passed directly to MikroORM query construction APIs, an attacker may inject raw SQL fragments. This can lead to SQL injection depending on the database and query being executed.
Affected usage
The issue occurs when untrusted objects are passed to ORM write APIs such as:
wrap(entity).assign(userInput)followed byem.flush()em.nativeUpdate()em.nativeInsert()em.create()followed byem.flush()
Applications that validate input types or enforce strict schema validation before passing data to MikroORM are not affected.
Fix
The vulnerability was caused by duck-typed detection of internal ORM marker properties.
The fix replaces these checks with symbol-based markers that cannot be reproduced by user input.
- Record
GHSA-gwhv-j974-6fxm- CVSS 4.0
- 9.3 Critical
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N - Weakness
- CWE-89
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
@mikro-orm/corenpm |
before 6.6.10 | 6.6.10 |
@mikro-orm/corenpm |
7.0.0-dev.0 up to 7.0.6 | 7.0.6 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | EQSTLab/CVE-2026-34220 | 2026-04-27 |
| PoC in GitHub | yym8538/CVE-2026-34220 | 2026-08-21 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-34220 is a critical vulnerability (CVSS 9.3) in Mikro-orm Mikroorm, published March 29, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. Fixed in @mikro-orm/core 6.6.10.