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Patrik Grobshäuser

Patrik Grobshäuser

Security researcher at Assetnote, a Searchlight Cyber company, finding pre-auth vulnerabilities in software that is deployed everywhere. Before that, bug bounty and triage at HackerOne and Shopify.

Where was Mythos when WordPress fell?

On marketing claims nobody checks, the 1,000 projects Anthropic never listed, and why an industry full of experts followed along.

Selected research

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Recent posts

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  1. CargoWise WebTracker — The Keys Were in the Cargo ↗

    Searchlight Cyber

  2. Keys to the Kingdom: Anonymous SQL Injection in Drupal Core ↗

    Searchlight Cyber CVE-2026-9082

  3. New Age of Collisions: Pre-Auth Arbitrary File Read as root in cPanel ↗

    Searchlight Cyber CVE-2026-29205

  4. Hyoketsu — Solving the Vendor Dependency Problem in RE ↗

    Searchlight Cyber

  5. Jolokia endpoints: JNDI RCE and heap dumps

    patrik.re CVE-2018-1000129, CVE-2018-1000130

  6. Google Cloud Console: dormant stored XSS

    patrik.re

Projects

  • h1-brain Research tooling

    An MCP server that turns your HackerOne report history and public disclosures into a starting point for your next bug bounty hunt.

  • RD Intelligence Vulnerability intelligence

    A platform that brings together vulnerability disclosures, exploit activity, and threat context to help teams decide what to investigate first.

  • threatover Security consulting

    My security consulting practice, covering penetration testing, security advisory, bug bounty programmes, and vulnerability triage.

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