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The publishes were authenticated via the legitimate GitHub Actions OIDC trusted-publisher binding for TanStack/router, but the publish workflow itself was not modified. The attacker chained three known vulnerability classes \u2014 a pull_request_target \"Pwn Request\" misconfiguration, GitHub Actions cache poisoning across the fork\u2194base trust boundary, and runtime memory extraction of the OIDC token from the Actions runner process \u2014 to publish credential-stealing malware under a trusted identity. 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