WW3MOD is a game mod, so most "security" issues will be crashes, save-file corruption, or multiplayer desyncs rather than classical vulnerabilities. Even so, please report concerning issues privately if they could be abused — for example, a crafted network packet that crashes an opponent's game.
Email with a description and reproduction steps. We'll acknowledge within a week.
For non-sensitive bugs, please use Issues instead.
Only the latest release receives fixes.