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Millions of software repositories on GitHub are likely vulnerable to an attack called RepoJacking, a new study has revealed.

This includes repositories from organizations such as Google, Lyft, and several others, Massachusetts-based cloud-native security firm Aqua said in a Wednesday report.

The supply chain vulnerability, also known as dependency repository hijacking, is a class of attacks that makes it possible to take over retired organization or user names and publish trojanized versions of repositories to run malicious code.

“When a repository owner changes their username, a link is created between the old name and the new name for anyone who downloads dependencies from the old repository,” researchers Ilay Goldman and Yakir Kadkoda said. “However, it is possible for anyone to create the old username and break this link.”

images from Hacker News