SQL Injection Risk in sqlparse Package: CVE-2026-59894
Summary
DEBIAN-CVE-2026-59894: sqlparse is a non-validating SQL parser module for Python. Affects sqlparse versions 0.4.1-1 – 0.5.5-2. No fix is published. How to fix ↓
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Background
sqlparse is a non-validating SQL parser module for Python, widely used for formatting SQL queries. It provides a simple interface for parsing and formatting SQL statements, making it a popular choice among developers. However, prior to version 0.6.0, sqlparse had a critical vulnerability that allowed crafted SQL to inject malicious Python or PHP code, posing significant security risks.
Vulnerability Detail
The vulnerability arises from sqlparse's failure to escape existing backslashes before quotes in the output formats 'python' and 'php'. This flaw allows an attacker to craft SQL that can terminate the generated string, leading to potential code injection when the output is executed or imported by a downstream consumer. The issue was identified in versions prior to 0.6.0 and has been addressed in the latest release.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
If immediate upgrading is not feasible, a temporary workaround is to sanitize any SQL input and output manually, ensuring that backslashes are properly escaped before processing. However, this is not a foolproof solution and should only be considered as a stopgap measure.
Conclusion
The sqlparse package has a critical vulnerability (CVE-2026-59894) that can lead to SQL injection attacks. It is crucial to update to version 0.6.0 or later to mitigate this risk. Regular monitoring of dependencies using tools like Vulert can help maintain the security of your applications.
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FAQ
CVE-2026-59894 is a vulnerability in the sqlparse package that allows for SQL injection attacks due to improper escaping of backslashes.
You can check if your application is affected by using the Vulert playground at Vulert Scanner, which analyzes your manifest file for vulnerabilities.
Failing to address this vulnerability can lead to unauthorized code execution, data breaches, and potential compromise of your application.
Yes, tools like Vulert can monitor and alert you in real-time for open-source vulnerabilities in your software without requiring access to the code.
If an immediate upgrade is not possible, implement input sanitization as a temporary workaround until you can update to a secure version.
References
Related vulnerabilities
Recent vulnerabilities recorded for sqlparse.
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