Security vulnerabilities and automated fixes for ldap injection issues
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A critical LDAP injection vulnerability in Apache Airflow's Flask-AppBuilder security manager allowed attackers to bypass authentication and gain unauthorized access by crafting malicious usernames. The flaw stemmed from unsanitized user input being directly interpolated into LDAP filter strings — a classic but devastating mistake. This post breaks down how the attack works, what was fixed, and how you can prevent similar issues in your own code.