python3-flask-cors: A vulnerability in corydolphin/flask-cors version 4.0.1 allows the`Access-Control-Allow-Private-Network` CORS header...
CVE-2024-6221 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2024-6221, released August 18, 2024. It is not reported as exploited. Patch Radar priority: High.
A vulnerability in corydolphin/flask-cors version 4.0.1 allows the`Access-Control-Allow-Private-Network` CORS header to be set to true bydefault. This behavior can expose private network resources to unauthorizedexternal access, leading to significant security risks such as databreaches, unauthorized access to sensitive information, and potentialnetwork intrusions.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-flask-cors · Debian 13.5 (trixie) | 5.0.0-1 | DEBIAN-CVE-2024-6221 | Aug 18, 2024 |
| python-flask-cors · Debian 14 | 5.0.0-1 | DEBIAN-CVE-2024-6221 | Aug 18, 2024 |
| python3-flask-cors · Ubuntu 20.04 LTS (focal) | 3.0.8-2ubuntu0.1+esm1 | python3-flask-cors 3.0.8-2ubuntu0.1+esm1 | Mar 20, 2025 |
| python3-flask-cors · Ubuntu 22.04.1 LTS (jammy) | 3.0.9-2ubuntu0.1 | python3-flask-cors 3.0.9-2ubuntu0.1 | Mar 20, 2025 |
| python3-flask-cors · Ubuntu 24.04.5 LTS (noble) | 4.0.0-1ubuntu0.1~esm1 | python3-flask-cors 4.0.0-1ubuntu0.1~esm1 | Mar 20, 2025 |
| python3-flask-cors · Ubuntu 24.10 (oracular) | 4.0.1-1ubuntu0.1 | python3-flask-cors 4.0.1-1ubuntu0.1 | Jan 16, 2026 |
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