Curated security research, vulnerabilities, advisories and tools for practitioners.

Supabase Leaks, What We Found

Summary

In late 2025 and early 2026, the cybersecurity landscape witnessed a disturbing trend involving the mass disclosure of Supabase API keys. This pattern came to a head when our team identified a massive leak involving a client who approached us for a Black Box Pentest. During this test, a publicly exposed “anonymous” key, often mistakenly treated as harmless by developers, served as the catalyst for a total compromise of the company’s customer database.
Published
Collected