{"schema_version":1,"title":"Cloudflare vulnerabilities","summary":"Junglewise Threat Intelligence has tracked 8 vulnerabilities in Cloudflare: 0 in the last 7 days and 1 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-14440, was published on 1 July 2026. 1 technology has a page of its own.","url":"https://junglewise.ai/threats/vendors/cloudflare","json_url":"https://junglewise.ai/threats/vendors/cloudflare.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/vendors/cloudflare","sources":"NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories","kind":"vendor","counts":{"high":0,"all_time":8,"critical":0,"exploited":0,"last_7_days":0,"last_30_days":0,"last_90_days":1,"last_365_days":3},"latest":[{"cve":"CVE-2026-14440","cvss":7.6,"slug":"cve-2026-14440-cloudflare-universal-ssl-caa-enforcement-bypass","title":"Cloudflare Universal SSL CAA enforcement bypass","severity":"info","exploited":false,"published_at":"2026-07-01T23:16:52.007+00:00","url":"https://junglewise.ai/threats/cve-2026-14440-cloudflare-universal-ssl-caa-enforcement-bypass"},{"cve":"CVE-2026-11941","cvss":5.6,"slug":"cve-2026-11941-cloudflare-quiche-use-after-free-in-connection-id-iterator-ffi","title":"Cloudflare Quiche use-after-free in connection ID iterator FFI functions","severity":"medium","exploited":false,"published_at":"2026-06-19T12:16:26.137+00:00","url":"https://junglewise.ai/threats/cve-2026-11941-cloudflare-quiche-use-after-free-in-connection-id-iterator-ffi"},{"cve":"CVE-2026-1664","cvss":4,"epss":0.0039,"slug":"cve-2026-1664-cloudflare-agents-sdk-insecure-direct-object-reference-in-email","title":"Cloudflare Agents SDK insecure direct object reference in email routing","severity":"medium","exploited":false,"published_at":"2026-02-03T18:42:01+00:00","url":"https://junglewise.ai/threats/cve-2026-1664-cloudflare-agents-sdk-insecure-direct-object-reference-in-email"},{"cve":"CVE-2025-59427","cvss":4,"epss":0.0038,"slug":"cve-2025-59427-cloudflare-vite-plugin-information-disclosure-via-dev-server","title":"Cloudflare Vite plugin information disclosure via dev server","severity":"medium","exploited":false,"published_at":"2025-07-08T19:07:47+00:00","url":"https://junglewise.ai/threats/cve-2025-59427-cloudflare-vite-plugin-information-disclosure-via-dev-server"},{"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-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"},{"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"}],"vendor":{"hub":true,"name":"Cloudflare","slug":"cloudflare","homepage":"https://www.cloudflare.com","description":"Cloudflare is a web performance and security company providing content delivery, DDoS protection, and other internet infrastructure services.","url":"https://junglewise.ai/threats/vendors/cloudflare"},"weekly":[{"week":"2026-06-29","critical":0,"exploited":0,"vulnerabilities":1},{"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}],"most_severe":[{"cve":"CVE-2026-11941","cvss":5.6,"slug":"cve-2026-11941-cloudflare-quiche-use-after-free-in-connection-id-iterator-ffi","title":"Cloudflare Quiche use-after-free in connection ID iterator FFI functions","severity":"medium","exploited":false,"published_at":"2026-06-19T12:16:26.137+00:00","url":"https://junglewise.ai/threats/cve-2026-11941-cloudflare-quiche-use-after-free-in-connection-id-iterator-ffi"},{"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-2026-1664","cvss":4,"epss":0.0039,"slug":"cve-2026-1664-cloudflare-agents-sdk-insecure-direct-object-reference-in-email","title":"Cloudflare Agents SDK insecure direct object reference in email routing","severity":"medium","exploited":false,"published_at":"2026-02-03T18:42:01+00:00","url":"https://junglewise.ai/threats/cve-2026-1664-cloudflare-agents-sdk-insecure-direct-object-reference-in-email"},{"cve":"CVE-2025-59427","cvss":4,"epss":0.0038,"slug":"cve-2025-59427-cloudflare-vite-plugin-information-disclosure-via-dev-server","title":"Cloudflare Vite plugin information disclosure via dev server","severity":"medium","exploited":false,"published_at":"2025-07-08T19:07:47+00:00","url":"https://junglewise.ai/threats/cve-2025-59427-cloudflare-vite-plugin-information-disclosure-via-dev-server"},{"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"},{"cve":"CVE-2026-14440","cvss":7.6,"slug":"cve-2026-14440-cloudflare-universal-ssl-caa-enforcement-bypass","title":"Cloudflare Universal SSL CAA enforcement bypass","severity":"info","exploited":false,"published_at":"2026-07-01T23:16:52.007+00:00","url":"https://junglewise.ai/threats/cve-2026-14440-cloudflare-universal-ssl-caa-enforcement-bypass"}],"generated_at":"2026-09-26T09:11:00.170868+00:00","technologies":[{"name":"Cloudflare workers-oauth-provider","slug":"workers-oauth-provider","vulnerabilities":4,"url":"https://junglewise.ai/threats/technologies/workers-oauth-provider"}]}