Workers Oauth Provider

DATE	CVE	VULNERABILITY TITLE	RISK
2025-05-01	CVE-2025-4143	Open Redirect vulnerability in Cloudflare Workers-Oauth-Provider 0.0.5 The OAuth implementation in workers-oauth-provider that is part of MCP framework https://github.com/cloudflare/workers-mcp , did not correctly validate that redirect_uri was on the allowed list of redirect URIs for the given client registration. Fixed in: https://github.com/cloudflare/workers-oauth-provider/pull/26 https://github.com/cloudflare/workers-oauth-provider/pull/26 Impact: Under certain circumstances (see below), if a victim had previously authorized with a server built on workers-oath-provider, and an attacker could later trick the victim into visiting a malicious web site, then attacker could potentially steal the victim's credentials to the same OAuth server and subsequently impersonate them. In order for the attack to be possible, the OAuth server's authorized callback must be designed to auto-approve authorizations that appear to come from an OAuth client that the victim has authorized previously. network low complexity cloudflare CWE-601	6.1
2025-05-01	CVE-2025-4144	Unspecified vulnerability in Cloudflare Workers-Oauth-Provider 0.0.5 PKCE was implemented in the OAuth implementation in workers-oauth-provider that is part of MCP framework https://github.com/cloudflare/workers-mcp . network low complexity cloudflare critical	9.8