GHSA-9R75-G2CR-3H76 Vercel Workflow Allows Webhook Creation with Predictable User-Specified Tokens

createWebhook in Vercel Workflow DevKit accepts a user-specified token parameter that serves as the credential for the public webhook endpoint /.well-known/workflow/v1/webhook/token. Official documentation recommended predictable token patterns, making it possible for an unauthenticated remote...