# Cloudflare security incidents · pwn.watch

> Security incidents tagged Cloudflare (vendor, product, platform or attack type).

Page: https://pwn.watch/t/cloudflare · generated 2026-10-22T18:38:01.102Z

## Status (as of 2026-10-22)
- Incidents: 6 (1 live, 1 live and not fully patched, 5 patched)
- Days without a Cloudflare security incident: 0 (1 still unpatched, so the counter stays at 0)
- Newest incident started: 2026-10-20

## Feeds
- JSON (incidents + changes + posts): https://pwn.watch/t/cloudflare.json
- RSS (one item per incident, bumped on each update): https://pwn.watch/t/cloudflare/feed.xml
- This file: https://pwn.watch/t/cloudflare/llms.txt
- Whole site: https://pwn.watch/llms.txt · all tags: https://pwn.watch/tags.json

## Incidents (newest first by start date)
- [HTTP/3 QPACK “Header Accordions” memory-amplification DoS](https://pwn.watch/i/http3-qpack-header-accordions) ([json](https://pwn.watch/i/http3-qpack-header-accordions.json)): unknown, live, partial, started 2026-10-20, CVE-2025-64702, CVE-2026-12523, CVE-2025-13945
- [Salesloft Drift OAuth tokens used to raid 700+ companies' Salesforce data (UNC6395)](https://pwn.watch/i/salesloft-drift-oauth-salesforce-data-theft-2025) ([json](https://pwn.watch/i/salesloft-drift-oauth-salesforce-data-theft-2025.json)): high, closed, no-fix-needed, started 2025-08-08
- [polyfill.io CDN turned malicious on 100k+ sites](https://pwn.watch/i/polyfill-io-supply-chain-attack) ([json](https://pwn.watch/i/polyfill-io-supply-chain-attack.json)): high, closed, patched, started 2024-06-25
- [Cloudflare 'Thanksgiving 2023' intrusion with tokens left over from the Okta breach](https://pwn.watch/i/cloudflare-thanksgiving-2023-okta-token-intrusion) ([json](https://pwn.watch/i/cloudflare-thanksgiving-2023-okta-token-intrusion.json)): high, closed, no-fix-needed, started 2023-11-14
- [Okta support system breach: HAR files with session tokens stolen](https://pwn.watch/i/okta-support-system-breach-2023) ([json](https://pwn.watch/i/okta-support-system-breach-2023.json)): high, closed, no-fix-needed, started 2023-09-28
- [HTTP/2 Rapid Reset: record-breaking DDoS attacks (CVE-2023-44487)](https://pwn.watch/i/http2-rapid-reset-ddos-cve-2023-44487) ([json](https://pwn.watch/i/http2-rapid-reset-ddos-cve-2023-44487.json)): high, closed, patched, started 2023-08-25, CVE-2023-44487