Cloudflare Public Bug Bounty · disclosed reports
Access Control
6 disclosed reports · $7,850 paid
Every dot is a report; the named ones are the most upvoted. Bright dots were paid a bounty. Reports open on HackerOne.
Open Cloudflare Public Bug Bounty on HackerOne- reports
- 6
- paid a bounty
- 3
Every one of the 6 is a mark on the map. Named now: 1 to 6, most upvoted first.
- Bypass of Cloudflare's Cache Keys and WAF via header overflow
- Hijack all emails sent to any domain that uses Cloudflare Email Forwarding
- HTTP Request Smuggling via Unsanitized Hop-by-Hop Headers
- Enable 2Fa verification without verifying email
- A malicious actor could rotate tokens of a victim, given that he knows the victim's token ID
- Privilege escalation to root in Pages build image v2
paid a bounty
Zoom in on the map and the dots under the middle of it are named where they are.
Data as of 2026-11-14. CVE List through 2026-11-14 · EPSS of 2026-11-13 · CISA KEV checked 2026-11-14. Sources: the CVE List, CISA KEV, EPSS, NVD, nuclei templates and public bug bounty data.