Our $1 million hacker challenge for React2Shell

Published: (December 19, 2025 at 08:00 AM EST)
1 min read

Source: Vercel Blog

Exploit Attempts Blocked

In the weeks following React2Shell’s disclosure, our firewall blocked over 6 million exploit attempts targeting deployments running vulnerable versions of Next.js, with 2.3 million in a single 24‑hour period at peak. This was possible thanks to Seawall, the deep request inspection layer of the Vercel platform.

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