This is a list of various open source software projects with links to security contacts for the project. Please only list those projects that do have a security contact to list! The contact may be an email address or a web page with more information.
The list should be maintained in alphabetical order.
Please refer to Documentation/SecurityBugs in a recent Linux kernel source tree for up-to-date information on how to best report security bugs in the Linux kernel, as well as on the public disclosure policy.
There are separate wiki pages with similar information on distribution vendors and the infrastructure.
OSVDB maintains The Vendor Dictionary, an extensive database of software and appliance vendors (not limited to Open Source ones).