Alert about SQL Injection Vulnerability in Sequelize Affecting Web Applications
A critical SQL injection vulnerability has been detected in Sequelize, a popular library for Node.js that facilitates database management. This alert was published by INCIBE-CERT on August 4, 2026, and affects versions prior to 6.37.4 of Sequelize.
Technical Details of the Vulnerability
The vulnerability, identified as CVE-2026-69240, allows for SQL injection when the database dialect is configured as oracle. The issue lies in the escape function defined in sql-string.js, which does not properly neutralize single quotes in strings that begin with TO_TIMESTAMP or TO_DATE.
In this context, if the value being processed is a string starting with these expressions, the escape function returns the value as is, without escaping the single quotes. This opens the door for an attacker to inject arbitrary SQL expressions through manipulated values that access this escape route.
Implications for Web Applications Using Sequelize
This vulnerability is critical because it could allow the execution of malicious SQL code in applications using Sequelize with the Oracle dialect configured and that have not updated to the patched version. SQL injection is a risk that can compromise the integrity and confidentiality of managed databases.
Recommended Measures According to INCIBE-CERT
The official notice recommends updating Sequelize to version 6.37.4, where this vulnerability has been fixed.
Publication Information and References
The vulnerability was publicly reported by t-tera and is classified as critical severity by INCIBE-CERT. The official listing of the vulnerability can be found in the GitHub advisories repository under code GHSA-v8fg-2rw7-q452.
This alert adds to INCIBE's initiatives to inform about security risks in widely used software in the field of cybersecurity in Spain.
For more information, you can consult the original source from INCIBE-CERT.
Limitations of Available Information
The source does not detail specific exploitation cases nor provide data on the impact in specific environments. No additional mitigation instructions are provided apart from updating to the secure version. There is no mention of impact on other dialects or on versions later than 6.37.4.
Published: 05/08/2026. Content reviewed using experience, authority and trustworthiness criteria (E-E-A-T).
This article may have used artificial intelligence tools to support structure, editing, translation or review. Editorial responsibility and final review remain with Toni Berraquero. View AI policy
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