GitHub Tightens npm Publishing After Flaw Left 1,500+ Packages Vulnerable to Hijacking

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Summary by Cyber Security News13 Oct 2026, 18:18 CEST

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GitHub has taken the step of expiring unvalidated npm trusted publishing configurations 48 hours after creation after researchers found that it was possible for an attacker to push new versions of a different user's package without having to steal their credentials. "Your configuration becomes validated and exempt from expiry after its first successful publish," the Microsoft-owned subsidiary

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