CVE-2019-10749 is a critical-severity (CVSS 9.8) SQL Injection vulnerability in sequelize. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for sequelize — see the affected versions and patch details below.
SQL Injection in sequelize
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
sequelizenpmDescription
Versions of sequelize prior to 3.35.1 are vulnerable to SQL Injection. The package fails to sanitize JSON path keys in the Postgres dialect, which may allow attackers to inject SQL statements and execute arbitrary SQL queries.
Recommendation
Upgrade to version 3.35.1 or later.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | sequelize | all versions | 3.35.1npm install sequelize@3.35.1 |
Affected Products
sequelizesequelizejsResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for sequelize, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update sequelize to 3.35.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-10749 is resolved across your whole dependency graph.
Workarounds
Until you can upgrade, make sure every query built from user input uses parameterised statements or a prepared-statement API rather than string concatenation, and reduce the database account's privileges so an injected query cannot read or alter data beyond what the feature needs.
Frequently Asked Questions
Is CVE-2019-10749 in your dependencies?
Find it across npm, including transitive dependencies.