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CVE-2024-6866

Case-Insensitive Path Matching in corydolphin/flask-cors

corydolphin/flask-cors version 4.01 contains a vulnerability where the request path matching is case-insensitive due to the use of the `try_match` function, which is originally intended for matching hosts. This results in a mismatch because paths in URLs are case-sensitive, but the regex matching treats them as case-insensitive. This misconfiguration can lead to significant security vulnerabilities, allowing unauthorized origins to access paths meant to be restricted, resulting in data exposure and potential data leaks.

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
Vendors
Corydolphin Flask-cors Project
Products
Flask-cors Flask-cors
CVE-2024-6844

Inconsistent CORS Matching Due to Handling of '+' in URL Path in corydolphin/flask-cors

A vulnerability in corydolphin/flask-cors version 4.0.1 allows for inconsistent CORS matching due to the handling of the '+' character in URL paths. The request.path is passed through the unquote_plus function, which converts the '+' character to a space ' '. This behavior leads to incorrect path normalization, causing potential mismatches in CORS configuration. As a result, endpoints may not be matched correctly to their CORS settings, leading to unexpected CORS policy application. This can cause unauthorized cross-origin access or block valid requests, creating security vulnerabilities and usability issues.

CVSS 3.0 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Corydolphin Flask-cors Project
Products
Flask-cors Flask-cors
CVE-2024-6839

Improper Regex Path Matching in corydolphin/flask-cors

corydolphin/flask-cors version 4.0.1 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.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Corydolphin Flask-cors Project
Products
Flask-cors Flask-cors
CVE-2020-25032

python-flask-cors: allows ../ directory traversal to access private resources

An issue was discovered in Flask-CORS (aka CORS Middleware for Flask) before 3.0.9. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.

CVSS 3.1 · 7.5 High EPSS 3.9% KEV · Not listed
Vendors
Debian Flask-cors Project Opensuse
Products
Debian Linux Flask-cors Backports Sle and 1 more