PYSEC-2024-260
Withdrawn 2026-07-09. This finding no longer applies and is kept for reference. It is not used when checking packages.
Details
Withdrawn as duplicate of PYSEC-2024-71. A vulnerability in corydolphin/flask-cors version 4.0.1 allows the `Access-Control-Allow-Private-Network` CORS header to be set to true by default. This behavior can expose private network resources to unauthorized external access, leading to significant security risks such as data breaches, unauthorized access to sensitive information, and potential network intrusions.
Are you affected?
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Affected packages
PyPI/flask-cors
Introduced in:
0No fixed version published yet for flask-cors (pip). Pin to a known-safe version or switch to an alternative.