Vendor
Cloudflare
70 known vulnerabilities in products by Cloudflare, 0 of them actively exploited (CISA KEV).
Key figures
70
Vulnerabilities
0
Actively exploited (KEV)
0
Used by ransomware
9
Critical
Vulnerabilities
Actively exploited vulnerabilities (CISA KEV) first, then by priority. Click a column header to re-sort the table.
| Critical | CVE-2026-0933 | OS Command Injection in `wrangler pages deploy` | 9.9 | |
| Critical | CVE-2021-3907 | Arbitrary filepath traversal via URI injection | 7.4 | |
| High | CVE-2023-3036 | Out of Bounds Slice index in cfnts leads to remote panic | 8.6 | |
| High | CVE-2026-11325 | cloudflare/pages-action is deprecated — migration required by September 18th, 2026 | 8.8 | |
| Critical | CVE-2026-2835 | HTTP Request Smuggling via HTTP/1.0 and Transfer-Encoding Misparsing | 9.1 | |
| Critical | CVE-2014-125026 | Out-of-bounds write in github.com/cloudflare/golz4 | 9.8 | |
| Critical | CVE-2025-6087 | SSRF vulnerability in opennextjs-cloudflare via /_next/image endpoint | 9.1 | |
| High | CVE-2026-105299 | Cloudflare Https://github.com/cloudflare/pingora: security vulnerability | 8.7 | |
| Critical | CVE-2026-2833 | HTTP Request Smuggling via Premature Upgrade | 9.1 | |
| Medium | CVE-2026-105298 | Cloudflare Https://github.com/cloudflare/pingora: security vulnerability | — | |
| High | CVE-2026-105297 | Cloudflare Https://github.com/cloudflare/pingora: Allocation of Resources Without Limits or Throttling | 7.5 | |
| High | CVE-2025-4821 | Incorrect congestion window growth by invalid ACK ranges | 7.5 | |
| Critical | CVE-2025-4144 | PKCE bypass via downgrade attack | 9.8 | |
| High | CVE-2021-3761 | OctoRPKI lacks contextual out-of-bounds check when validating RPKI ROA maxLength values | 7.5 | |
| Critical | CVE-2026-1229 | Incorrect calculation in CIRCL secp384r1 CombinedMult | 9.8 | |
| High | CVE-2026-12523 | Resource exhaustion in quiche HTTP/3 and QPACK layers | 7.5 | |
| High | CVE-2024-0212 | Cloudflare-WordPress: Improper Access Control | 8.1 | |
| High | CVE-2026-12707 | Unbounded path event queue growth in quiche via peer-driven source connection ID rotation | 7.5 | |
| High | CVE-2022-2529 | Multiple DoS Attack Vectors in sflow packet handling | 7.5 | |
| High | CVE-2022-4428 | support_uri validation missing in WARP client for Windows | 8.9 | |
| High | CVE-2023-2754 | Plaintext transmission of DNS requests in Windows 1.1.1.1 WARP client | 7.4 | |
| High | CVE-2024-1765 | Unlimited resource allocation by QUIC CRYPTO frames flooding in quiche | 5.9 | |
| High | CVE-2021-3909 | Infinite open connection causes OctoRPKI to hang forever | 4.4 | |
| High | CVE-2023-7080 | Arbitrary remote code execution within wrangler dev Workers sandbox | 8.5 | |
| High | CVE-2026-2836 | Cache poisoning via insecure-by-default cache key | 8.1 |
Products
| Cloudflare WARP | 19 | 0 |
| Cloudflare OctoRPKI | 9 | 0 |
| Cloudflare Quiche | 9 | 0 |
| Https://github.com/cloudflare/pingora | 6 | 0 |
| Cloudflare Wrangler | 4 | 0 |
| Pingora | 4 | 0 |
| Warp Client | 4 | 0 |
| Cloudflare WARP | 3 | 0 |