Flask-CORS allows the `Access-Control-Allow-Private-Network` CORS header to be set to true by default

高 7.5CVE-2024-6221 · GHSA-hxwh-jpp2-84pm · PYSEC-2024-260 · 18/08/2024 公開 · 17/06/2026 更新

要点

CVE-2024-6221 は flask-cors, flask-cors (corydolphin) に影響する深刻度「高」 (CVSS 7.5) の脆弱性です。
今後30日間に悪用される確率（EPSS）：0.72%（全脆弱性の 53.9% より高い）。
対処：4.0.2 以降に更新してください。

パッケージ	影響を受けるバージョン	修正済みバージョン
flask-cors PyPI	`≤ 4.0.1< 4.0.2`	`4.0.2`
flask-cors corydolphin	`= 4.0.1`	修正版なし

概要

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, without any configuration option. 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.

NVD の説明

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.