Highlights
Auth Bypass: 1 prior fix. Scrutinize any change in this area.
GitHub: most-fixed (2 issues). Treat as high-risk during review.
2 high-severity fixes in this history; regressions here are high-impact.
Recurring patterns
The bug types that recur here, drawn from past fixes, not open vulnerabilities.
TOCTOU / Supply Chain: Fork PR preview deployments checkout a mutable merge_ref without validating it against the reviewed commit, allowing unapproved code to run in a privileged context.
Auth Bypass: Workflows triggered from forks can execute with access to secrets.VERCEL_TOKEN, enabling unauthorized deployment and token exfiltration.
Information Disclosure: The checkout step persists GitHub credentials into the local environment, risking token exposure to any subsequent step or malicious code.