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Bug bounty program

CP

Cloudflare Public Bug Bounty

Open on HackerOneAtlas
Platform
HackerOne
Bounties
Pays
Assets in scope
51
Disclosed reports
44
Subdomains
24,298
Vendor on CyberSIXT
Cloudflare (70 CVEs, 0 exploited)

Most upvoted reports44

All reports
Most upvoted reports of Cloudflare Public Bug Bounty
ReportWeaknessDisclosedBountyVotes
HTTP Request Smuggling in Transform Rules using hexadecimal escape sequences in the concat() functionAnalysed#1478633Injection and Smuggling2022-05-16$6,000116
Cloudflare CASB Confused Deputy ProblemAnalysed#1952124No weakness recorded2023-06-07$3,30097
Using special IPv4-mapped IPv6 addresses to bypass local IP banAnalysed#1785260No weakness recorded2023-01-24$7,50078
Bypass of Cloudflare's Cache Keys and WAF via header overflow#3027461Access Control2025-11-18–77
Hijack all emails sent to any domain that uses Cloudflare Email ForwardingAnalysed#1419341Access Control2022-07-28$6,00076
`use-mcp`'s oauth2 process uses a window.open call with untrusted mcp server provided data allowing for code execution under the page using itAnalysed#3211031Cross-site Scripting2025-09-30$55075
Yet Another CASB Integration Takeover of Active IntegrationsAnalysed#2094346No weakness recorded2023-11-13–68
[Variation of #3321406] YetAnother 1-Click Chaining of Self-XSS, Cookie Tossing and AntiCSRF Token Prediction leads to auto approval in AccessTempAuthAnalysed#3423950Cross-site Scripting2026-04-14–63
AI Playground XSS to steal user-chat messages and access to connected MCP ServerAnalysed#3424998Cross-site Scripting2026-02-26–62
Bypass R2 payment screenAnalysed#2170559Authentication2023-11-10$35057

Subdomains24,298

Root:cloudflareaccess.com
Scope
Name suggests
First seen
Text fileClear filters4,882 names
Subdomains of Cloudflare Public Bug Bounty
NameScopeFirst seen
gccgovsgdev.cloudflareaccess.comNot in the scope2026-11-14
gce-ca.cloudflareaccess.comNot in the scope2026-11-14
gcom-product-find-dev.cloudflareaccess.comdevNot in the scope2026-11-14
gcom-product-find-qa.cloudflareaccess.comtestNot in the scope2026-11-14
gcr1.cloudflareaccess.comNot in the scope2026-11-14
gdmmexico.cloudflareaccess.comNot in the scope2026-11-14
gdmny.cloudflareaccess.comNot in the scope2026-11-14
gdudemaine.cloudflareaccess.comNot in the scope2026-11-14
ge.cloudflareaccess.comNot in the scope2026-11-14
gearheadsw.cloudflareaccess.comNot in the scope2026-11-14
gearsethq.cloudflareaccess.comNot in the scope2026-11-14
gedeon.cloudflareaccess.comNot in the scope2026-11-14
geekcq.cloudflareaccess.comNot in the scope2026-11-14
geekzone.cloudflareaccess.comNot in the scope2026-11-14
gegeewu.cloudflareaccess.comNot in the scope2026-11-14
gener8.cloudflareaccess.comNot in the scope2026-11-14
generate.cloudflareaccess.comNot in the scope2026-11-14
genymobile.cloudflareaccess.comNot in the scope2026-11-14
genyuswebsites.cloudflareaccess.comNot in the scope2026-11-14
geoinstinct.cloudflareaccess.comNot in the scope2026-11-14
geojango.cloudflareaccess.comNot in the scope2026-11-14
georgevenn.cloudflareaccess.comNot in the scope2026-11-14
geralnik.cloudflareaccess.comNot in the scope2026-11-14
geschenkidee.cloudflareaccess.comNot in the scope2026-11-14
getastra.cloudflareaccess.comNot in the scope2026-11-14
getchange.cloudflareaccess.comNot in the scope2026-11-14
getfunded.cloudflareaccess.comNot in the scope2026-11-14
getglad.cloudflareaccess.comNot in the scope2026-11-14
getiago.cloudflareaccess.comNot in the scope2026-11-14
getlaidbeds.cloudflareaccess.comNot in the scope2026-11-14
getmygrades.cloudflareaccess.comNot in the scope2026-11-14
getus.cloudflareaccess.comNot in the scope2026-11-14
gflenv.cloudflareaccess.comNot in the scope2026-11-14
ggbitcom.cloudflareaccess.comNot in the scope2026-11-14
ggoose.cloudflareaccess.comNot in the scope2026-11-14
ggpoker-dev-pub.cloudflareaccess.comdevNot in the scope2026-11-14
gh360.cloudflareaccess.comNot in the scope2026-11-14
gh360solutions.cloudflareaccess.comNot in the scope2026-11-14
ghixqa.cloudflareaccess.comNot in the scope2026-11-14
ghost.cloudflareaccess.comNot in the scope2026-11-14
ghostaio.cloudflareaccess.comNot in the scope2026-11-14
ghostlimited.cloudflareaccess.comNot in the scope2026-11-14
giantlottos.cloudflareaccess.comNot in the scope2026-11-14
giftster.cloudflareaccess.comNot in the scope2026-11-14
gig.cloudflareaccess.comNot in the scope2026-11-14
gigabytes.cloudflareaccess.comNot in the scope2026-11-14
gihotrelka.cloudflareaccess.comNot in the scope2026-11-14
gilbertfruit.cloudflareaccess.comNot in the scope2026-11-14
gilleyhouse.cloudflareaccess.comNot in the scope2026-11-14
gilsousa.cloudflareaccess.comNot in the scope2026-11-14
gisei.cloudflareaccess.comNot in the scope2026-11-14
git.cloudflareaccess.comgitNot in the scope2026-11-14
gitbook.cloudflareaccess.comNot in the scope2026-11-14
gitlab.cloudflareaccess.comgitNot in the scope2026-11-14
givelab.cloudflareaccess.comNot in the scope2026-11-14
gkjs.cloudflareaccess.comNot in the scope2026-11-14
gkm4430.cloudflareaccess.comNot in the scope2026-11-14
gktxt.cloudflareaccess.comNot in the scope2026-11-14
gl.cloudflareaccess.comNot in the scope2026-11-14
glandrive.cloudflareaccess.comNot in the scope2026-11-14
glandrive-clients.cloudflareaccess.comNot in the scope2026-11-14
glduff.cloudflareaccess.comNot in the scope2026-11-14
glgprod.cloudflareaccess.comNot in the scope2026-11-14
globalresearch.cloudflareaccess.comNot in the scope2026-11-14
globalxair.cloudflareaccess.comNot in the scope2026-11-14
globus-bfm.cloudflareaccess.comNot in the scope2026-11-14
glogin.cloudflareaccess.comNot in the scope2026-11-14
glossier.cloudflareaccess.comNot in the scope2026-11-14
glovo.cloudflareaccess.comNot in the scope2026-11-14
glpg.cloudflareaccess.comNot in the scope2026-11-14
gnsllc.cloudflareaccess.comNot in the scope2026-11-14
go.cloudflareaccess.comNot in the scope2026-11-14
goatgroup.cloudflareaccess.comNot in the scope2026-11-14
gobble.cloudflareaccess.comNot in the scope2026-11-14
gocrm.cloudflareaccess.comNot in the scope2026-11-14
goflink.cloudflareaccess.comNot in the scope2026-11-14
gohenry.cloudflareaccess.comNot in the scope2026-11-14
golfbreakscfsso.cloudflareaccess.comNot in the scope2026-11-14
golfscape.cloudflareaccess.comNot in the scope2026-11-14
gommehd.cloudflareaccess.comNot in the scope2026-11-14
gonitro.cloudflareaccess.comNot in the scope2026-11-14
goochfriend.cloudflareaccess.comNot in the scope2026-11-14
goosebumps.cloudflareaccess.comNot in the scope2026-11-14
gorath.cloudflareaccess.comNot in the scope2026-11-14
goshenschools.cloudflareaccess.comNot in the scope2026-11-14
goswami.cloudflareaccess.comNot in the scope2026-11-14
gotoandplay.cloudflareaccess.comNot in the scope2026-11-14
gotranseo.cloudflareaccess.comNot in the scope2026-11-14
gotutor.cloudflareaccess.comNot in the scope2026-11-14
gour.cloudflareaccess.comNot in the scope2026-11-14
gowormy.cloudflareaccess.comNot in the scope2026-11-14
gpantidc2.cloudflareaccess.comNot in the scope2026-11-14
gportal.cloudflareaccess.comNot in the scope2026-11-14
gpx.cloudflareaccess.comNot in the scope2026-11-14
gr8t.cloudflareaccess.comNot in the scope2026-11-14
grabjobs.cloudflareaccess.comNot in the scope2026-11-14
gradoj.cloudflareaccess.comNot in the scope2026-11-14
grailed.cloudflareaccess.comNot in the scope2026-11-14
grandvision.cloudflareaccess.comNot in the scope2026-11-14
grapeintentions.cloudflareaccess.comNot in the scope2026-11-14

18,935 names are covered by the program's own scope; 2 were first seen this week. Names come from ProjectDiscovery's public Chaos dataset (passive sources: certificate logs, DNS and other public data), matched to the program by its listing and its own domain scope. A name being in a dataset is not permission to test it: only what the program's own scope says is in scope, and its policy decides. CyberSIXT does not resolve, probe or scan these names. Tags come from the name alone. Source: ProjectDiscovery Chaos. Subdomains on the Atlas, or search the subdomains of every program.

A name in a dataset is not permission to test it: the program's own scope and rules decide. Data as of 2026-11-15.

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