CVE-2024-6221 Improper Access Control in corydolphin/flask-cors
The library defaults to allowing private network access via CORS, exposing internal resources to external attackers for data theft or network intrusion.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2024-6221?
CVE-2024-6221 is a medium-severity vulnerability in corydolphin/flask-cors, published on 18 Aug 2024. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
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.
Weakness: CWE-284
Which versions are affected by CVE-2024-6221?
3 open source packages ship an affected version, including flask-cors and Flask-Cors. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
flask-cors PyPI | All versions | 4.0.2 |
flask-cors PyPI | All versions | 4.0.2 |
Flask-Cors PyPI | All versions | 4.0.2 |
Products include Corydolphin Flask-Cors.
How do I fix CVE-2024-6221?
Upgrade flask-cors to 4.0.2 or later.
Is CVE-2024-6221 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-6221 exists.
Other vulnerabilities in corydolphin/flask-cors
Sources
Also known as DEBIAN-CVE-2024-6221, GHSA-hxwh-jpp2-84pm, OESA-2024-2198, PYSEC-2024-71, ROOT-APP-PYPI-CVE-2024-6221, UBUNTU-CVE-2024-6221.