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GHSA-7rxf-gvfg-47g4

Flask-CORS improper regex path matching vulnerability

Source: GitHub Advisory Database (reviewed) Moderate CVE-2024-6839

Packages

EcosystemPackageAffectedFixed in
PyPI flask-cors < 6.0.0 6.0.0

Details

As written in the advisory (Markdown source, shown as plain text).

corydolphin/flask-cors version 5.0.1 contains an improper regex path matching vulnerability. The plugin prioritizes longer regex patterns over more specific ones when matching paths, which can lead to less restrictive CORS policies being applied to sensitive endpoints. This mismatch in regex pattern priority allows unauthorized cross-origin access to sensitive data or functionality, potentially exposing confidential information and increasing the risk of unauthorized actions by malicious actors.

References

External links from the advisory. They lead to third-party sites.