Supabase Audit Buckets List

This audits Supabase storage by enumerating all buckets and their configurations, flagging security issues like publicly accessible backup buckets or unrestricted MIME types. You'd run it early in a pentest to map the storage attack surface before testing individual bucket permissions. The output categorizes findings by severity (P0 for sensitive data exposed publicly, P1 for risky configs like wildcarded file types) and suggests immediate fixes. One thing to note is the aggressive emphasis on progressive file updates, writing findings to context files after each bucket discovered rather than batching at the end. This makes sense for audit tooling where you don't want to lose results to a crash, though the repeated warnings about it feel a bit heavy handed in the documentation.

skills.sh installs: 498
GitHub stars: 75
last updated: Aug 21, 2026

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Install

$ npx -y skills add yoanbernabeu/supabase-pentest-skills --skill supabase-audit-buckets-list --agent claude-code

Installs into .claude/skills of the current project.

Files

List Storage Buckets

🔴 CRITICAL: PROGRESSIVE FILE UPDATES REQUIRED

You MUST write to context files AS YOU GO, not just at the end.

Write to .sb-pentest-context.json IMMEDIATELY after each bucket discovered

Log to .sb-pentest-audit.log BEFORE and AFTER each operation

DO NOT wait until the skill completes to update files

If the skill crashes or is interrupted, all prior findings must already be saved

This is not optional. Failure to write progressively is a critical error.

This skill discovers all storage buckets configured in a Supabase project.

When to Use This Skill

To inventory all storage buckets
Before testing bucket access permissions
To identify publicly accessible buckets
As part of storage security audit

Prerequisites

Supabase URL and anon key available
Detection completed

Understanding Supabase Storage

Supabase Storage provides:

https://[project].supabase.co/storage/v1/

Buckets can be:

Public: Files accessible without authentication
Private: Files require authentication and RLS policies

Storage API Endpoints

SKILL.md on GitHub

Details

Repository: github.com/yoanbernabeu/supabase-pentest-skills
Categories: Backend & APIs, Security, Databases
First seen: Jun 3, 2026