Abstract: The open-source model effectively lowers technological entry barriers and advances the democratization of technology by dismantling knowledge monopolies and fostering collaborative innovation. However, while the open-source paradigm accelerates disruptive technological innovation, it simultaneously amplifies inherent risks, precipitating multidimensional ethical governance challenges including dual-use knowledge concerns, ambiguous responsibility attribution, and global justice in benefit distribution. This paper systematically analyzes the ethical dilemmas and governance challenges of open-source disruptive technologies, employing AI and synthetic biology as representative cases. Traditional individual-centric governance models prove inadequate for addressing the distributed characteristics of open-source ecosystems, while the fragmentation of international governance and the bounded effectiveness of industry self-regulation mechanisms further compound governance complexity. This paper proposes an ethical governance framework centered on the principle of Solidarity. This framework emphasizes the organic integration of multi-stakeholder collaborative governance, dynamic risk stratification, and global ethical consensus, thereby providing theoretical guidance and practical pathways for achieving equilibrium between open development and secure governance of disruptive technologies.