CVE-2024-6866
Flask-CORS vulnerable to Improper Handling of Case Sensitivity
Description
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.
How to fix CVE-2024-6866
To remediate CVE-2024-6866, upgrade the affected package to a fixed version below.
- —upgrade to 3.0.9-2+deb11u1 or later
- —upgrade to 6.0.0 or later
Is CVE-2024-6866 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 3.0.9-2+deb11u1
- from 0, < 6.0.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N |