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📦 npm

GHSA-gwhv-j974-6fxm

MikroORM is vulnerable to SQL Injection via specially crafted object

Also known asCVE-2026-34220
Published
Mar 29, 2026
Updated
Mar 31, 2026
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed

EPSS Exploitation Probability

via FIRST.org ↗
0.4%probability of exploitation in next 30 days
Lower Risk34th percentile+0.41%
0.00%0.31%0.62%0.93%0.0%0.0%0.0%0.4%Apr 26Jun 26Jun 26

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

2 pkgs affected
📦@mikro-orm/core📦@mikro-orm/core

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects npm packages — download data is not available via public APIs for these ecosystems.

Description

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 by em.flush()
  • em.nativeUpdate()
  • em.nativeInsert()
  • em.create() followed by em.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.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
📦npm@mikro-orm/coreall versions6.6.10
📦npm@mikro-orm/core7.0.0-dev.0&&< 7.0.67.0.6

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for @mikro-orm/core. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update @mikro-orm/core to 6.6.10 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-gwhv-j974-6fxm is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-gwhv-j974-6fxm is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-gwhv-j974-6fxm. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

## 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 by `em.flush()` - `em.nativeUpdate()` - `em.nativeInsert()` - `em.create()` foll
O3 Security · Impact-Aware SCA

Is GHSA-gwhv-j974-6fxm in your dependencies?

O3 detects GHSA-gwhv-j974-6fxm across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.