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Background for this topic.
GitHub is a hosted software-development platform built around Git repositories. It supports public and private source-code hosting, change review through pull requests, issue tracking, automated workflows, and package distribution. Its repositories and automation are important security assets because they can contain proprietary code, deployment instructions, credentials, and the components used to build released software.
Material risks include accidentally committing secrets, exposing private repositories through misconfigured permissions, and allowing compromised dependencies or workflow actions to run in trusted build environments. Pull requests from untrusted contributors can also become an execution path when workflows handle them unsafely. Security practice includes least-privilege access, strong authentication, protected branches and required reviews, secret scanning and rapid credential revocation, and auditing workflow permissions. Repository history, dependency metadata, and commit provenance can support vulnerability management and incident investigation, but deleting a leaked secret from the latest file does not remove it from historical commits or existing clones.
Many organizations are unwittingly exposing users of their code repositories to repojacking when renaming projects, a new study shows.
Millions of GitHub repositories may be vulnerable to dependency repository hijacking, also known as "RepoJacking," which could help attackers deploy supply chain attacks impacting a large number of users. [...]
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Millions of software repositories on GitHub are likely vulnerable to an attack called RepoJacking, a new study has revealed