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Empty S3 Bucket CORS is overriden by moto server wildcard CORS #8410

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kangasta opened this issue Dec 16, 2024 · 0 comments · May be fixed by #8409
Open

Empty S3 Bucket CORS is overriden by moto server wildcard CORS #8410

kangasta opened this issue Dec 16, 2024 · 0 comments · May be fixed by #8409
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@kangasta
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kangasta commented Dec 16, 2024 •
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Steps to reproduce

  1. Create bucket and an object. Configure a bucket policy to allow anonymous public access.
  2. GET object with Origin header. Response contains CORS headers even though bucket CORS is not defined.

See also objsto Terraform provider test that reproduces this.

Possible solution

Add environment variable to disable configuring wildcard CORS in moto/moto_server/werkzeug_app.py#L275. See #8409 for draft PR.
@kangasta kangasta changed the title Empty S3 Bucket CORS is overriden by moto server CORS Empty S3 Bucket CORS is overriden by moto server wildcard CORS Dec 16, 2024
@bblommers bblommers linked a pull request Jan 5, 2025 that will close this issue
Add MOTO_DISABLE_GLOBAL_CORS for disabling wildcard CORS #8409
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Add MOTO_DISABLE_GLOBAL_CORS for disabling wildcard CORS kangasta/moto
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