Cloudflare CVEs
29 vulnerabilities mapped to Cloudflare’s software or packages, 0 of them in CISA’s Known Exploited Vulnerabilities catalog, newest first. Not a statement that the hosted service was exposed.
CVEs mapped to a company Rewindex tracks (by CVE affected-product data, NVD CPE, vendor advisories and package feeds), every entry in CISA’s Known Exploited Vulnerabilities catalog, and CVEs named in a tracked status incident. Other CVEs are not listed. Same list on the all-vendor CVE index.
Each column is one week (Monday start, UTC), stacked by CVSS severity, by published date or the KEV date added. Dots mark entries added to CISA KEV that week. The last week is still in progress.
CVE-2026-11325 cloudflare/pages-action is deprecated — migration required by September 18th, 2026
CVSS 8.8 highEPSS 0.68%
CVE-2026-12523 Resource exhaustion in quiche HTTP/3 and QPACK layers
CVSS 7.5 highEPSS 0.53%
CVE-2026-11941 Use-after-free in connection ID iterator and FFI functions
CVSS 5.6 mediumEPSS 0.25%
CVE-2026-2836 Cache poisoning via insecure-by-default cache key
CVSS 8.1 highEPSS 0.41%
CVE-2026-2835 HTTP Request Smuggling via HTTP/1.0 and Transfer-Encoding Misparsing
CVSS 9.1 criticalEPSS 0.82%
CVE-2026-2833 HTTP Request Smuggling via Premature Upgrade
CVSS 9.1 criticalEPSS 0.69%
CVE-2026-3125 SSRF vulnerability in opennextjs-cloudflare via /cdn-cgi/ path normalization bypass
CVSS 6.5 mediumEPSS 0.38%
CVE-2026-1229 Incorrect calculation in CIRCL secp384r1 CombinedMult
CVSS 9.8 criticalEPSS 0.43%
CVE-2026-1721 Reflected Cross-Site Scripting (XSS) vulnerability in AI Playground site
CVSS 6.2 mediumEPSS 0.42%
CVE-2026-1664 Insecure Direct Object Reference (IDOR) via Header-Based Email Routing
CVSS 6.9 mediumEPSS 0.47%
CVE-2026-0933 OS Command Injection in `wrangler pages deploy`
CVSS 9.9 criticalEPSS 1.5%
CVE-2025-13353 gokey allows secret recovery from a seed file without the master password
CVSS 5.5 mediumEPSS 0.16%
CVE-2025-59427 Cloudflare vite plugin exposes secrets over the built-in dev server
CVSS 2.9 lowEPSS 0.38%
CVE-2025-7054 Infinite loop triggered by connection ID retirement
CVSS 6.5 mediumEPSS 0.40%
CVE-2025-4821 Incorrect congestion window growth by invalid ACK ranges
CVSS 7.5 highEPSS 0.94%
CVE-2025-4820 Incorrect congestion window growth by optimistic ACK
CVSS 5.3 mediumEPSS 0.86%
CVE-2025-6087 SSRF vulnerability in opennextjs-cloudflare via /_next/image endpoint
CVSS 9.1 criticalEPSS 0.97%
CVE-2025-4366 Request Smuggling Vulnerability in Pingora
CVSS 6.1 mediumEPSS 0.54%
CVE-2025-4658 Authentication Bypass in OPKSSH
CVSS 9.8 criticalEPSS 0.34%
CVE-2025-3757 Authentication Bypass in OpenPubKey
CVSS 9.8 criticalEPSS 0.43%
CVE-2025-4144 PKCE bypass via downgrade attack
CVSS 9.8 criticalEPSS 0.57%
CVE-2025-4143 Missing validation of redirect_uri on authorize endpoint
CVSS 6.1 mediumEPSS 0.32%
CVE-2021-3978 Improper Preservation of Permissions in github.com/cloudflare/cfrpki/cmd/octorpki
CVSS 7.5 highEPSS 0.14%
CVE-2025-0651 File symlink abuse might lead to deleting files belonging to SYSTEM user
CVSS 7.1 highEPSS 0.30%
All vendors’ CVEs · JSON · Markdown
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)