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Bug bounty program

GI

GitHub

Open on HackerOneAtlas
Platform
HackerOne
Bounties
Pays
Assets in scope
27
Disclosed reports
47
Subdomains
56,442
Vendor on CyberSIXT
GitHub (168 CVEs, 0 exploited)

Most upvoted reports47

All reports
Most upvoted reports of GitHub
ReportWeaknessDisclosedBountyVotes
Arbitrary Read of Another Users private repository without AuthorizationAnalysed#3124517Insecure Direct Object Reference2025-09-23$10,000276
Github Apps can use Scoped-User-To-Server Tokens to Obtain Full Access to User's Projects in Project V2 GraphQL apiAnalysed#1711938Access Control2023-01-26–198
SAML Signature verification bypass allows logging into any user (with specific conditions)Analysed#2579939Access Control2024-10-10–196
Authentication bypass on gist.github.com through SSH CertificatesAnalysed#1901040Access Control2023-04-20$10,000182
CSRF protection bypass in GitHub Enterprise management consoleAnalysed#1497169Cross-Site Request Forgery2022-04-13$10,000152
Cross-repository IDOR in `/settings/security_analysis/bypass_reviewers` allows unauthorized delegated bypass reviewer modificationAnalysed#3560256Insecure Direct Object Reference2026-05-19–108
Able to bypass authorization logic and gain more access then intendedAnalysed#3713965No weakness recorded2026-07-15–105
Access body and title of Internal Repo Issues in ProjectsAnalysed#2501036Information Disclosure2024-07-31–100
Github app Privilege Escalation to Administrator/Owner of the OrganizationAnalysed#1732595Access Control2023-01-13–98
Missing Access Control in MigrationFile allows attacker to upload files to any MigrationAnalysed#3506183Insecure Direct Object Reference2026-03-05–92

Subdomains56,442

Root
Scope
Name suggests:Mail
First seen
Text fileClear filters447 names
Subdomains of GitHub
NameScopeFirst seen
mail.test.github.commail, testNot in the scope2026-11-14
autodiscover.testing.github.commail, testNot in the scope2026-11-14
autodiscover.tickets.github.commailNot in the scope2026-11-14
autodiscover.travel.github.commailNot in the scope2026-11-14
autodiscover.tv.github.commailNot in the scope2026-11-14
autodiscover.us.github.commailNot in the scope2026-11-14
autodiscover.v2.github.commailNot in the scope2026-11-14
autodiscover.video.github.commailNot in the scope2026-11-14
autodiscover.videos.github.commailNot in the scope2026-11-14
autodiscover.web.github.commailNot in the scope2026-11-14
autodiscover.webdesign.github.commailNot in the scope2026-11-14
php-imap.webklex.github.commailNot in the scope2026-11-14
webmail.github.commailNot in the scope2026-11-14
webmail-original.github.commailNot in the scope2026-11-14
autoconfig.webmail.github.commailNot in the scope2026-11-14
autodiscover.webmail.github.commailNot in the scope2026-11-14
webdisk.webmail.github.commailNot in the scope2026-11-14
www.webmail.github.commailNot in the scope2026-11-14
webmail01.github.commailNot in the scope2026-11-14
webmail1.github.commailNot in the scope2026-11-14
webmail10.github.commailNot in the scope2026-11-14
webmail2.github.commailNot in the scope2026-11-14
webmail3.github.commailNot in the scope2026-11-14
webmail4.github.commailNot in the scope2026-11-14
webmail5.github.commailNot in the scope2026-11-14
autodiscover.wholesale.github.commailNot in the scope2026-11-14
autodiscover.wiki.github.commail, toolsNot in the scope2026-11-14
autodiscover.wordpress.github.commailNot in the scope2026-11-14
autodiscover.wp.github.commailNot in the scope2026-11-14
autodiscover.www2.github.commailNot in the scope2026-11-14
autodiscover.x.github.commailNot in the scope2026-11-14
mail.xvdieos.github.commailNot in the scope2026-11-14
mail.yy568.github.commailNot in the scope2026-11-14
zimbra.github.commailNot in the scope2026-11-14
github-smtp2-ext1.iad.github.netgit, mailIn scope2026-11-14
github-smtp2-ext2.iad.github.netgit, mailIn scope2026-11-14
github-smtp2-ext3.iad.github.netgit, mailIn scope2026-11-14
github-smtp2-ext4.iad.github.netgit, mailIn scope2026-11-14
github-smtp2-ext5.iad.github.netgit, mailIn scope2026-11-14
github-smtp2-ext6.iad.github.netgit, mailIn scope2026-11-14
github-smtp2-ext7.iad.github.netgit, mailIn scope2026-11-14
github-smtp2-ext8.iad.github.netgit, mailIn scope2026-11-14
github-smtp2a-cp1-prd.iad.github.netgit, mailIn scope2026-11-14
github-smtp2a-ext-cp1-prd.iad.github.netgit, mailIn scope2026-11-14
github-smtp2b-cp1-prd.iad.github.netgit, mailIn scope2026-11-14
github-smtp2b-ext-cp1-prd.iad.github.netgit, mailIn scope2026-11-14
mail.semmle.commailNot in the scope2026-11-14

661 names are covered by the program's own scope; 0 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 2026-11-14.

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