---
title: "Valid Requests Being Blocked By Vercel Firewall"
description: "Resolved · affects v3 API, Tool Execution, Tool Search, Sandbox, Proxy · May 26, 2026"
base_url: "https://composio.openstatus.dev"
canonical: "https://composio.openstatus.dev/events/report/1981"
homepage_url: "https://composio.dev"
contact_url: "mailto:support@composio.dev"
---

# Valid Requests Being Blocked By Vercel Firewall

[Status](/.md) › [Events](/events.md) › Valid Requests Being Blocked By Vercel Firewall

May 26, 2026 · 3 months ago · affects: v3 API, Tool Execution, Tool Search, Sandbox, Proxy · 9 hours

## Updates

### + Resolved — May 26, 9:30 AM

We have temporarily eased its restrictions. The Cloudflare WAF remains in place. If you receive a 403 with a request id resembling something like "cle:..." or some other 3 letter region prefix please try again or reach out to us.  
This incident has been resolved.

### x Investigating — May 26, 1:00 AM

We've noticed Vercel's firewall has been blocking many tool execution requests and other requests to the backend.

---

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