CVE-2022-31527: Flask-File-Server Project Flask-File-Server

Critical severity, CVSS 9.3. EPSS: 1.3% chance of exploitation in the next 30 days.

The Wildog/flask-file-server repository through 2020-02-20 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely.

Affected products

• Flask-File-Server Project Flask-File-Server: up to and including 2020-02-20

Published 2022-07-11. Last modified 2026-06-17.