corydolphin/flask-cors · Security

Flask-CORS vulnerable to Improper Handling of Case Sensitivity

GHSA ID
GHSA-43qf-4rqw-9q2g
CVE ID
CVE-2024-6866
Severity
medium
Published
Updated
CVSS
5.3 · CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS v3
5.3 · CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N

Description

corydolphin/flask-cors version 5.0.1 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.

CWEs

References