GMX bug bounty programs
gmx.com Updated
GMX runs one public program: a security.txt bug bounty.
- Top reward
- Not published
- Programs
- 1
- 1 pays cash
- Targets in scope
- 5
- 2 types
- Last change
- 12 Nov 2026
- 3 hours ago
Where to report
The one public program GMX runs.
| Program | Top reward | Safe harbor | KYC | First response | Status |
|---|---|---|---|---|---|
GMX
security.txt · Bug bounty |
Not published | Partial | – | – | Open |
-
- Safe harbor
- Partial
Amounts are the top reward per severity in the currency each program pays. First response is the platform's measured average when it publishes one, else what the policy promises.
What is in scope
5 targets. 1 excluded.
-
gmx.com
Domains
-
gmx.fr
Domains
-
gmx.us
Domains
-
mail.com
Domains
-
the web applications within the authenticated area processing customer data (i.e. the products like email, calendar or cloud, including the authentication systems)
Products and areas
No target matches. Try part of a host name, such as the company name.
Out of scope 1
Don't test these. A program can exclude a host another program covers; the program you report to decides.
-
All other systems
Recent changes
Reward and scope changes across every GMX program, newest first.
-
Scope +
Added to scope: gmx.fr
About this page
This page gathers every public program listed under gmx.com: platform programs, self-hosted policies and security.txt contacts. Each program's own policy decides what is in scope and what it pays; check it before you test.
Something wrong or missing? Report a correction.