What does npm v12 actually change by default?
npm v12 turns off three defaults that have existed since npm's early days: automatic install/postinstall scripts (allowScripts now defaults to off), Git dependencies, and sourcing packages from remote URLs. Developers must explicitly allowlist any of the three in package.json if their project genuinely needs them.
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npm's Biggest Security Overhaul in 16 Years Is Here — Attackers Are Already Adaptingnpm v12 blocks install scripts, Git dependencies, and remote sources by default. Researchers say attackers are already routing around it.
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