What’s Vulnerable › Products

Cloudflare Workers-Oauth-Provider vulnerabilities

2 known vulnerabilities, 0 confirmed exploited in the wild (CISA KEV), 2 published in the last 12 months.

Check whether your Cloudflare Workers-Oauth-Provider version is affected

Latest Cloudflare Workers-Oauth-Provider vulnerabilities

• CVE-2025-4144 — PKCE bypass via downgrade attack (CVSS 9.8)
• CVE-2025-4143 — Missing validation of redirect_uri on authorize endpoint (CVSS 6.1)