CVE-2020-25032

Advisory

Flask-CORS before 3.0.9 allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format. See CVE-2020-25032.

Affected package

Affected versions

Fixed versions

Vulnerability changelog

An issue was discovered in Flask-CORS (aka CORS Middleware for Flask) before 3.0.9. It allows ../ directory traversal to access private resources because resource matching does not ensure that pathnames are in a canonical format.


MISC:https://github.com/corydolphin/flask-cors/releases/tag/3.0.9: https://github.com/corydolphin/flask-cors/releases/tag/3.0.9

Resources

• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-25032
• https://github.com/corydolphin/flask-cors/releases/tag/3.0.9
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00028.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00032.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00039.html
• http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00048.html
• https://www.debian.org/security/2020/dsa-4775