The Open Sourced Vulnerability Database (OSVDB) was an independent and open-sourced vulnerability database. The goal of the project was to provide accurate, detailed, current, and unbiased technical information on security vulnerabilities. The project promoted greater and more open collaboration between companies and individuals. The database's motto was "Everything is Vulnerable".

The core of OSVDB was a relational database which tied various information about security vulnerabilities into a common, cross-referenced open security data source. As of December 2013, the database cataloged over 100,000 vulnerabilities. While the database was maintained by a 501(c)(3) non-profit public organization and volunteers, the data was prohibited for commercial use without a license. Despite that, many large commercial companies used the data in violation of the license without contributing employee volunteer time or financial compensation.