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CVE-2026-75529: Flask Send File Missing Mimetype Or Attachmentcve-2026-75529-flask-send-file-missing-mimetype-or-attachment

Serving files using `send_file` without specifying `mimetype` or `as_attachment=True` can allow files with active extensions or polyglots to be served inline with attacker-controlled MIME types, leading to Cross-Site Scripting (XSS).

PythonCVE-2026-75529 CWE-79

by Provallyupdated 2026-09-02Apache-2.0

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