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CoreDNS bug bounty programs

coredns.io Updated

CoreDNS runs one public program: a Sorona bug bounty paying up to $1,500.

Top reward
$1,500
Sorona
Programs
1
1 pays cash
Targets in scope
8
2 types
Last change
None yet
Tracked since Nov 2026

Where to report

The one public program CoreDNS runs.

  • CoreDNS

    Sorona · Bug bounty

    Open

    Top reward

    $1,500
    Critical
    –
    High
    –
    Medium
    –
    Low
    $100
    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

8 targets. 5 excluded.

  • https://coredns.io

    Web

  • Caching and forwarding behaviour end to end, covering which answer from which source is served to which client

    Products and areas

  • Every server transport the daemon speaks, including the DoH, DoT and gRPC listeners

    Products and areas

  • The Corefile parser and the plugin ordering it produces, which decides what runs before what on every query

    Products and areas

  • The DNS server core and the miekg/dns layer it is built on, where every query and every upstream answer is decoded

    Products and areas

  • The kubernetes plugin in full: it reads live Service and Endpoint state, and it is the place where a namespace boundary is expressed as a DNS boundary and can therefore be crossed

    Products and areas

  • The project takes security reports at [email protected] and through GitHub private advisory reporting, and draws no boundary narrower than the main CoreDNS repository itself

    Products and areas

  • The whole bundled plugin chain rather than the handful of plugins that happen to carry a CVE, forward, cache, rewrite and template among them

    Products and areas

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

Out of scope 5

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

  • Cluster misconfiguration such as an over-permissive kubernetes plugin zone, which is an operator decision

  • DNS amplification treated as an operational property of the protocol rather than as a defect in CoreDNS

  • Kubernetes itself and other CNCF components, which are different projects and are not covered by this program

  • One-line patches that fix non-exploitable crashes, including crashes that only amount to resource exhaustion, which the Patch Rewards rules say will not generally be rewarded

  • Third-party plugins that are not in the main CoreDNS repository

Recent changes

Reward and scope changes across every CoreDNS 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 coredns.io: 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.