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.

    Vulnerabilities in Cloudflare
    CriticalCVE-2026-0933

    OS Command Injection in `wrangler pages deploy`

    9.9
    CriticalCVE-2021-3907

    Arbitrary filepath traversal via URI injection

    also in 4 other products

    7.4
    HighCVE-2023-3036

    Out of Bounds Slice index in cfnts leads to remote panic

    8.6
    HighCVE-2026-11325

    cloudflare/pages-action is deprecated — migration required by September 18th, 2026

    8.8
    CriticalCVE-2026-2835

    HTTP Request Smuggling via HTTP/1.0 and Transfer-Encoding Misparsing

    9.1
    CriticalCVE-2014-125026

    Out-of-bounds write in github.com/cloudflare/golz4

    also in 1 other product

    9.8
    CriticalCVE-2025-6087

    SSRF vulnerability in opennextjs-cloudflare via /_next/image endpoint

    9.1
    HighCVE-2026-105299

    Cloudflare Https://github.com/cloudflare/pingora: security vulnerability

    8.7
    CriticalCVE-2026-2833

    HTTP Request Smuggling via Premature Upgrade

    9.1
    MediumCVE-2026-105298

    Cloudflare Https://github.com/cloudflare/pingora: security vulnerability

    —
    HighCVE-2026-105297

    Cloudflare Https://github.com/cloudflare/pingora: Allocation of Resources Without Limits or Throttling

    7.5
    HighCVE-2025-4821

    Incorrect congestion window growth by invalid ACK ranges

    7.5
    CriticalCVE-2025-4144

    PKCE bypass via downgrade attack

    9.8
    HighCVE-2021-3761

    OctoRPKI lacks contextual out-of-bounds check when validating RPKI ROA maxLength values

    also in 3 other products

    7.5
    CriticalCVE-2026-1229

    Incorrect calculation in CIRCL secp384r1 CombinedMult

    also in 2 other products

    9.8
    HighCVE-2026-12523

    Resource exhaustion in quiche HTTP/3 and QPACK layers

    7.5
    HighCVE-2024-0212

    Cloudflare-WordPress: Improper Access Control

    8.1
    HighCVE-2026-12707

    Unbounded path event queue growth in quiche via peer-driven source connection ID rotation

    7.5
    HighCVE-2022-2529

    Multiple DoS Attack Vectors in sflow packet handling

    also in 1 other product

    7.5
    HighCVE-2022-4428

    support_uri validation missing in WARP client for Windows

    8.9
    HighCVE-2023-2754

    Plaintext transmission of DNS requests in Windows 1.1.1.1 WARP client

    7.4
    HighCVE-2024-1765

    Unlimited resource allocation by QUIC CRYPTO frames flooding in quiche

    5.9
    HighCVE-2021-3909

    Infinite open connection causes OctoRPKI to hang forever

    also in 4 other products

    4.4
    HighCVE-2023-7080

    Arbitrary remote code execution within wrangler dev Workers sandbox

    8.5
    HighCVE-2026-2836

    Cache poisoning via insecure-by-default cache key

    8.1

    All vulnerabilities in search

    Products