# Cloudflare vulnerabilities Source: https://junglewise.ai/threats/vendors/cloudflare Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 10 November 2026, 15:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/vendors/cloudflare.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 12 vulnerabilities in Cloudflare: 1 in the last 7 days and 5 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-12708, was published on 10 November 2026. 4 vulnerabilities in the last four weeks, up from none in the four before. 2 technologies have a page of their own. ## Counts - Last 7 days: 1 - Last 30 days: 5 - Last 90 days: 5 - All time: 12 (0 critical, 0 exploited in the wild) ## About Cloudflare Cloudflare is a web performance and security company providing content delivery, DDoS protection, and other internet infrastructure services. ## Latest Cloudflare vulnerabilities - [CVE-2026-12708: Cloudflare tokio-quiche uncontrolled resource consumption in HTTP/3 DATAGRAM](https://junglewise.ai/threats/cve-2026-12708-summary-cloudflare-tokio-quiche-was-found-to-contain-an) (info, published 10 Nov 2026) - [CVE-2026-105299: Cloudflare Pingora HTTP/1 Connection header bypass](https://junglewise.ai/threats/cve-2026-105299-summary-before-version-0-9-0-the-http-1-upstream-path-in-pingora) (high, CVSS 8.7, published 20 Oct 2026) - [CVE-2026-105298: Pingora HTTP/2 host mismatch and cache poisoning](https://junglewise.ai/threats/cve-2026-105298-summary-before-version-0-9-0-pingora-accepted-http-2-requests) (medium, CVSS 4, published 20 Oct 2026) - [CVE-2026-105297: Pingora HTTP/2 server memory exhaustion via header injection](https://junglewise.ai/threats/cve-2026-105297-summary-before-version-0-8-1-pingora-s-http-2-server-used-the-h2) (high, CVSS 7.5, published 20 Oct 2026) - [CVE-2026-107913: Cloudflare App for WordPress broken access control](https://junglewise.ai/threats/cve-2026-107913-rejected-reason-this-cve-id-is-a-duplicate-of-and-was-never) (info, published 14 Oct 2026) - [CVE-2026-14440: Cloudflare Universal SSL CAA enforcement bypass](https://junglewise.ai/threats/cve-2026-14440-cloudflare-universal-ssl-caa-enforcement-bypass) (info, CVSS 7.6, published 1 Jul 2026) - [CVE-2026-1664: Cloudflare Agents SDK insecure direct object reference in email routing](https://junglewise.ai/threats/cve-2026-1664-cloudflare-agents-sdk-insecure-direct-object-reference-in-email) (medium, CVSS 4, published 3 Feb 2026) - [CVE-2025-59427: Cloudflare Vite plugin information disclosure via dev server](https://junglewise.ai/threats/cve-2025-59427-cloudflare-vite-plugin-information-disclosure-via-dev-server) (medium, CVSS 4, published 8 Jul 2025) - [CVE-2025-4144: Cloudflare workers-oauth-provider PKCE bypass via downgrade attack](https://junglewise.ai/threats/cve-2025-4144-cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack) (medium, CVSS 4, published 1 May 2025) - [CVE-2025-4143: Cloudflare workers-oauth-provider authorization bypass in redirect URI validation](https://junglewise.ai/threats/cve-2025-4143-cloudflare-workers-oauth-provider-authorization-bypass-in-redirect) (medium, CVSS 4, published 1 May 2025) - [Cloudflare workers-oauth-provider PKCE bypass via downgrade attack](https://junglewise.ai/threats/cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack-87923c2f) (medium, CVSS 4, published 1 May 2025) - [Cloudflare workers-oauth-provider redirect URI validation bypass](https://junglewise.ai/threats/cloudflare-workers-oauth-provider-redirect-uri-validation-bypass-55593b0a) (medium, CVSS 4, published 1 May 2025) ## Most severe Cloudflare vulnerabilities - [CVE-2026-105299: Cloudflare Pingora HTTP/1 Connection header bypass](https://junglewise.ai/threats/cve-2026-105299-summary-before-version-0-9-0-the-http-1-upstream-path-in-pingora) (high, CVSS 8.7, published 20 Oct 2026) - [CVE-2026-105297: Pingora HTTP/2 server memory exhaustion via header injection](https://junglewise.ai/threats/cve-2026-105297-summary-before-version-0-8-1-pingora-s-http-2-server-used-the-h2) (high, CVSS 7.5, published 20 Oct 2026) - [CVE-2026-105298: Pingora HTTP/2 host mismatch and cache poisoning](https://junglewise.ai/threats/cve-2026-105298-summary-before-version-0-9-0-pingora-accepted-http-2-requests) (medium, CVSS 4, published 20 Oct 2026) - [CVE-2025-4144: Cloudflare workers-oauth-provider PKCE bypass via downgrade attack](https://junglewise.ai/threats/cve-2025-4144-cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack) (medium, CVSS 4, published 1 May 2025) - [CVE-2026-1664: Cloudflare Agents SDK insecure direct object reference in email routing](https://junglewise.ai/threats/cve-2026-1664-cloudflare-agents-sdk-insecure-direct-object-reference-in-email) (medium, CVSS 4, published 3 Feb 2026) - [CVE-2025-59427: Cloudflare Vite plugin information disclosure via dev server](https://junglewise.ai/threats/cve-2025-59427-cloudflare-vite-plugin-information-disclosure-via-dev-server) (medium, CVSS 4, published 8 Jul 2025) - [CVE-2025-4143: Cloudflare workers-oauth-provider authorization bypass in redirect URI validation](https://junglewise.ai/threats/cve-2025-4143-cloudflare-workers-oauth-provider-authorization-bypass-in-redirect) (medium, CVSS 4, published 1 May 2025) - [Cloudflare workers-oauth-provider PKCE bypass via downgrade attack](https://junglewise.ai/threats/cloudflare-workers-oauth-provider-pkce-bypass-via-downgrade-attack-87923c2f) (medium, CVSS 4, published 1 May 2025) - [Cloudflare workers-oauth-provider redirect URI validation bypass](https://junglewise.ai/threats/cloudflare-workers-oauth-provider-redirect-uri-validation-bypass-55593b0a) (medium, CVSS 4, published 1 May 2025) - [CVE-2026-14440: Cloudflare Universal SSL CAA enforcement bypass](https://junglewise.ai/threats/cve-2026-14440-cloudflare-universal-ssl-caa-enforcement-bypass) (info, CVSS 7.6, published 1 Jul 2026) ## Vulnerabilities per week 4 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 1 | 0 | 0 | | 19 Oct 2026 | 3 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 1 | 0 | 0 | ## Cloudflare technologies - [Cloudflare workers-oauth-provider](https://junglewise.ai/threats/technologies/workers-oauth-provider): 4 vulnerabilities - [Cloudflare Pingora](https://junglewise.ai/threats/technologies/pingora): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Cloudflare vulnerabilities", https://junglewise.ai/threats/vendors/cloudflare, 10 November 2026.