# CVE-2026-69240: Sequelize SQL injection in Oracle dialect escape function

Source: https://junglewise.ai/threats/cve-2026-69240-sequelize-sql-injection-in-oracle-dialect-escape-function  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-03. Updated: 2026-08-03  
License: CC BY 4.0 with a link back

CVE-2026-69240 · Severity: critical · CVSS 9.8 · Published 2026-08-03

Sequelize, a popular tool for managing database connections in Node.js applications, contains a security flaw when used with Oracle databases. This vulnerability allows an attacker to bypass security filters and execute unauthorized commands directly on the database. If exploited, this could lead to the theft of sensitive customer data, unauthorized modification of records, or full control over the database environment.

Technologies: [sequelize (npm)](https://junglewise.ai/threats/technologies/sequelize). Vendors: [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-69240 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69240 being exploited in the wild.

**How severe is CVE-2026-69240?** Critical severity, with a CVSS score of 9.8, published 3 August 2026.

**Which products and versions are affected?** sequelize (npm) < 6.37.4, SEMVER:introduced=0,fixed=6.37.4.

**Is there a fix for CVE-2026-69240?** Yes. sequelize (npm): upgrade to 6.37.4 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-69240 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-69240?** Check whether you run sequelize (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- sequelize (npm): upgrade to 6.37.4 or later

  ```sh
  npm install sequelize@6.37.4
  ```


## Technical details

A SQL injection vulnerability exists in Sequelize's Oracle dialect implementation within `sql-string.js`. The `escape` function fails to sanitize single quotes if a string value begins with `TO_TIMESTAMP` or `TO_DATE`, returning the raw string instead of an escaped version. An attacker can exploit this by providing a crafted input that starts with one of these functions followed by malicious SQL syntax (e.g., using the `||` operator). This allows for arbitrary SQL expression injection without authentication. The issue is confirmed in version 6.37.3 and addressed in version 6.37.4.

## Affected products

- Sequelize sequelize < 6.37.4

## Identifiers

- CVE-2026-69240
- GHSA-v8fg-2rw7-q452

## Timeline

- 2026-07-29: patched: Fix released in version 6.37.4
- 2026-08-03: advisory: GitHub Advisory published

## References

- [https://api.github.com/users/t-tera](https://api.github.com/users/t-tera)
- [https://github.com/t-tera](https://github.com/t-tera)
- [https://api.github.com/users/t-tera/gists%7B/gist_id%7D](https://api.github.com/users/t-tera/gists%7B/gist_id%7D)
- [https://api.github.com/users/t-tera/repos](https://api.github.com/users/t-tera/repos)
- [https://avatars.githubusercontent.com/u/15522767?v=4](https://avatars.githubusercontent.com/u/15522767?v=4)
- [https://api.github.com/users/t-tera/events%7B/privacy%7D](https://api.github.com/users/t-tera/events%7B/privacy%7D)

## Related threats

- [Sequelize SQL injection in JSON where clause processing](https://junglewise.ai/threats/cve-2026-30951-sequelize-sql-injection-in-json-where-clause-processing)
- [Sequelize SQL injection via unescaped parentheses in attributes](https://junglewise.ai/threats/cve-2023-22578-sequelize-sql-injection-via-unescaped-parentheses-in-attributes)
- [Sequelize unsafe fall-through in getWhereConditions](https://junglewise.ai/threats/cve-2023-22579-sequelize-unsafe-fall-through-in-getwhereconditions)
- [Sequelize SQL injection via replacements](https://junglewise.ai/threats/cve-2023-25813-sequelize-sql-injection-via-replacements)
- [Sequelize SQL injection via improper attribute filtering](https://junglewise.ai/threats/sequelize-sql-injection-via-improper-attribute-filtering-12e6c501)