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AI-generated Supabase apps may have PostgreSQL RLS security flaw

An AI security expert highlighted a potential vulnerability in AI-generated Supabase applications related to PostgreSQL's Row Level Security (RLS). The issue arises from how RLS policies are constructed, specifically when using `auth.uid() = user_id` with `WITH CHECK (true)`. This configuration could inadvertently allow users to modify ownership fields, such as `user_id`, to any value, effectively bypassing intended restrictions. AI

IMPACT Highlights a potential security risk in AI-generated code for application development platforms.

RANK_REASON The item discusses a specific technical detail and potential security flaw in a software product (Supabase) and its underlying database (PostgreSQL), particularly concerning AI-generated code.

Read on Mastodon — mastodon.social →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

AI-generated Supabase apps may have PostgreSQL RLS security flaw

How we ranked this

Signal score
13 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
The item discusses a specific technical detail and potential security flaw in a software product (Supabase) and its underlying database (PostgreSQL), particularly concerning AI-generated code.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, safety
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. Mastodon — mastodon.social TIER_1 English(EN) · abbilabs ·

    Postgres RLS detail worth checking in AI-generated Supabase apps: create policy ... for update using (auth.uid() = user_id) with check (true); Looks owner-only.

    Postgres RLS detail worth checking in AI-generated Supabase apps: create policy ... for update using (auth.uid() = user_id) with check (true); Looks owner-only. It isn't quite. USING limits which existing rows a user can update, WITH CHECK limits what the new row may look like. W…