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Checkmk bug bounty programs

checkmk.com Updated

Checkmk runs one public program: a self-hosted disclosure program with no cash rewards.

Top reward
No cash
Disclosure only
Programs
1
None pays cash
Targets in scope
16
5 types
Last change
None yet
Tracked since Nov 2026

Where to report

The one public program Checkmk runs.

  • Checkmk

    Self-hosted · Disclosure only

    Open

    Top reward

    No cash
    Safe harbor
    Partial
    First response
    3 days promised

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

16 targets. 20 excluded.

  • checkmk.com

    Domains

  • the checkmk website and its subdomains

    Domains No bounty

  • tribe29.com

    Domains

  • checkmk.com website and its subdomains

    Web

  • tribe29.com website and its subdomains

    Web

  • https://github.com/Checkmk/grafana-checkmk-datasource

    Source code No bounty

  • https://github.com/tribe29/checkmk

    Source code No bounty

  • https://github.com/tribe29/checkmk_kube_agent

    Source code No bounty

  • The Checkmk codebase

    Source code

  • The Checkmk appliance

    Hardware and IoT

  • Checkmk appliance

    Products and areas

  • Checkmk codebase

    Products and areas

  • Checkmk Grafana datasource

    Products and areas

  • Checkmk K8s cluster collector

    Products and areas

  • The Checkmk Grafana datasource

    Products and areas

  • The Checkmk K8s cluster collector

    Products and areas

No target matches. Try part of a host name, such as the company name.

Out of scope 20

Don't test these. A program can exclude a host another program covers; the program you report to decides.

  • (Distributed) Denial of service (DDoS) attacks against the aforementioned domains, machines running Checkmk, or the Checkmk appliances

  • Anything related to email spoofing, SPF, DMARC or DKIM

  • Arbitrary file upload without proof of the existence of the uploaded file

  • Best practices violations (password complexity, expiration, re-use, etc.), with low or no impact

  • Blind SSRF without proven business impact (DNS pingback only is not sufficient)

  • Clickjacking attacks with low or no impact

  • Disclosed and/or misconfigured API keys without proven business impact

  • Email bombing

  • HTTP Host headers manipulation without a proven business impact

  • HTTP Request smuggling without any proven business impact

  • Installation of malicious software on machines running Checkmk or on the Checkmk appliances

  • Lack of HSTS enforcement for Checkmk web applications

  • Missing Cookie flags without a PoC on how this can be exploited

  • Missing security headers without a PoC on how this can be exploited

  • Physical attacks against the Checkmk appliances

  • Self-XSS that cannot be exploited against other users

  • Side-channel attacks

  • Social engineering attacks against Checkmk’s employees, partners, or customers (e.g., phishing, vishing, waterholing, typosquatting, homograph attacks, etc.)

  • Verbose error and log messages that do not reveal personal data or secrets

  • Weak SSL configurations and SSL/TLS scan reports

Recent changes

Reward and scope changes across every Checkmk program, newest first.

No changes recorded yet. New targets and reward moves show up here and in the RSS feed.

About this page

This page gathers every public program listed under checkmk.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.

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