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starlette@0.27.0 vulnerabilities

The little ASGI library that shines.

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Direct Vulnerabilities

Known vulnerabilities in the starlette package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • H
Allocation of Resources Without Limits or Throttling

starlette is a The little ASGI library that shines.

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via multipart/form-data requests, due to treating parts without a filename as text form fields and buffering those in byte strings with no size limit.

An attacker could cause Starlette to both slow down significantly due to excessive memory allocations and copy operations, and also consume more and more memory until the server starts swapping and grinds to a halt by uploading arbitrary large form fields.

Note:

This vulnerability affects all applications built with Starlette (or FastAPI) accepting form requests.

How to fix Allocation of Resources Without Limits or Throttling?

Upgrade starlette to version 0.40.0 or higher.

[,0.40.0)
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