Fix Your AI-Built AWS S3 Integration
Amazon's object storage service used for file uploads and static assets. AI tools generate insecure bucket policies, leak credentials, and skip presigned URL patterns.
Common AWS S3 issues we find
Problems specific to AI-generated AWS S3 integrations.
S3 bucket configured with public read/write access
AI-generated code sets the bucket ACL to public-read-write or uses a bucket policy that grants s3:* to everyone, exposing all files and allowing arbitrary uploads.
AWS credentials hardcoded or in client-side code
Generated code includes AWS access key ID and secret access key directly in source files or client-side environment variables instead of using IAM roles or presigned URLs.
File uploads sent through the server instead of presigned URLs
AI tools route all file uploads through your server, creating a bandwidth bottleneck and unnecessary cost, instead of using S3 presigned URLs for direct browser-to-S3 uploads.
No file type or size validation on uploads
Generated code accepts any file type and size, allowing users to upload executable files, oversized files, or files that exhaust your S3 storage budget.
Missing CORS configuration for browser uploads
AI tools skip CORS configuration on the S3 bucket, causing direct browser uploads via presigned URLs to fail with opaque CORS errors.
Start with a self-serve audit
Get a professional review of your AWS S3 integration at a fixed price.
Security Scan
Black-box review of your public-facing app. No code access needed.
- OWASP Top 10 checks
- SSL/TLS analysis
- Security headers
- Expert review within 24h
Code Audit
In-depth review of your source code for security, quality, and best practices.
- Security vulnerabilities
- Code quality review
- Dependency audit
- AI pattern analysis
Complete Bundle
Both scans in one package with cross-referenced findings.
- Everything in both products
- Cross-referenced findings
- Unified action plan
100% credited toward any paid service. Start with an audit, then let us fix what we find.
How it works
Tell us about your app
Share your project details and what you need help with.
Get a clear plan
We respond in 24 hours with scope, timeline, and cost.
Launch with confidence
We fix what needs fixing and stick around to help.
Frequently asked questions
Is my AI-generated S3 bucket publicly accessible?
Very likely. AI tools frequently set bucket policies to allow public access for simplicity. We audit your bucket policy, ACLs, and Block Public Access settings to ensure only authorized users can read or write to your bucket.
How should I handle file uploads to S3 in my web app?
AI tools typically proxy uploads through your server, which is slow and expensive. The correct approach is to generate presigned URLs on the server with file type and size restrictions, then have the browser upload directly to S3. We implement this secure, scalable pattern.
Why are my S3 presigned URL uploads failing in the browser?
AI-generated code skips CORS configuration on the bucket. You need to add a CORS policy that allows PUT requests from your domain with the correct headers. We also verify the presigned URL is generated with the right content type and expiration.
Related resources
Other Integrations
Need help with your AWS S3 integration?
Tell us about your project. We'll respond within 24 hours with a clear plan and fixed quote.