{"schema_version":1,"title":"Cloudflare workers-oauth-provider vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 4 vulnerabilities in Cloudflare workers-oauth-provider: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2025-4144, was published on 1 May 2025.","url":"https://junglewise.ai/threats/technologies/workers-oauth-provider","json_url":"https://junglewise.ai/threats/technologies/workers-oauth-provider.json","publisher":"Junglewise Threat Intelligence","license":"CC-BY-4.0","license_url":"https://creativecommons.org/licenses/by/4.0/","attribution":"Junglewise Threat Intelligence, https://junglewise.ai/threats/technologies/workers-oauth-provider","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"technology","counts":{"high":0,"all_time":4,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":0,"last_365_days":0},"latest":[{"cve":"CVE-2025-4144","cvss":4,"epss":0.0055,"slug":"cve-2025-4144-cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack","title":"Cloudflare workers-oauth-provider PKCE bypass via downgrade attack","severity":"medium","exploited":false,"published_at":"2025-05-01T17:01:42+00:00","url":"https://junglewise.ai/threats/cve-2025-4144-cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack"},{"cve":"CVE-2025-4143","cvss":4,"epss":0.0031,"slug":"cve-2025-4143-cloudflare-workers-oauth-provider-authorization-bypass-in-redirect","title":"Cloudflare workers-oauth-provider authorization bypass in redirect URI validation","severity":"medium","exploited":false,"published_at":"2025-05-01T17:00:29+00:00","url":"https://junglewise.ai/threats/cve-2025-4143-cloudflare-workers-oauth-provider-authorization-bypass-in-redirect"},{"cvss":4,"slug":"cloudflare-workers-oauth-provider-redirect-uri-validation-bypass-55593b0a","title":"Cloudflare workers-oauth-provider redirect URI validation bypass","severity":"medium","exploited":false,"published_at":"2025-05-01T03:31:17+00:00","url":"https://junglewise.ai/threats/cloudflare-workers-oauth-provider-redirect-uri-validation-bypass-55593b0a"},{"cvss":4,"slug":"cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack-87923c2f","title":"Cloudflare workers-oauth-provider PKCE bypass via downgrade attack","severity":"medium","exploited":false,"published_at":"2025-05-01T03:31:17+00:00","url":"https://junglewise.ai/threats/cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack-87923c2f"}],"weekly":[{"week":"2026-07-06","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-13","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-20","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-07-27","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-03","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-10","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-17","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-24","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-08-31","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-07","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-14","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-21","critical":0,"exploited":0,"vulnerabilities":0},{"week":"2026-09-28","critical":0,"exploited":0,"vulnerabilities":0}],"related":[],"technology":{"hub":true,"name":"Cloudflare workers-oauth-provider","slug":"workers-oauth-provider","vendor":{"name":"Cloudflare","slug":"cloudflare","url":"https://junglewise.ai/threats/vendors/cloudflare"},"aliases":[],"category":"library","description":"OAuth 2.0 provider implementation for Cloudflare Workers.","url":"https://junglewise.ai/threats/technologies/workers-oauth-provider"},"most_severe":[{"cve":"CVE-2025-4144","cvss":4,"epss":0.0055,"slug":"cve-2025-4144-cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack","title":"Cloudflare workers-oauth-provider PKCE bypass via downgrade attack","severity":"medium","exploited":false,"published_at":"2025-05-01T17:01:42+00:00","url":"https://junglewise.ai/threats/cve-2025-4144-cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack"},{"cve":"CVE-2025-4143","cvss":4,"epss":0.0031,"slug":"cve-2025-4143-cloudflare-workers-oauth-provider-authorization-bypass-in-redirect","title":"Cloudflare workers-oauth-provider authorization bypass in redirect URI validation","severity":"medium","exploited":false,"published_at":"2025-05-01T17:00:29+00:00","url":"https://junglewise.ai/threats/cve-2025-4143-cloudflare-workers-oauth-provider-authorization-bypass-in-redirect"},{"cvss":4,"slug":"cloudflare-workers-oauth-provider-redirect-uri-validation-bypass-55593b0a","title":"Cloudflare workers-oauth-provider redirect URI validation bypass","severity":"medium","exploited":false,"published_at":"2025-05-01T03:31:17+00:00","url":"https://junglewise.ai/threats/cloudflare-workers-oauth-provider-redirect-uri-validation-bypass-55593b0a"},{"cvss":4,"slug":"cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack-87923c2f","title":"Cloudflare workers-oauth-provider PKCE bypass via downgrade attack","severity":"medium","exploited":false,"published_at":"2025-05-01T03:31:17+00:00","url":"https://junglewise.ai/threats/cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack-87923c2f"}],"generated_at":"2026-09-28T03:07:00.154823+00:00"}