https://cve.radiocsirt.org Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Tue, 06 Oct 2026 19:04:17 +0000 https://cve.radiocsirt.org/vuln/bdu:2026-10662 bdu:2026-10662 https://cve.radiocsirt.org/vuln/bdu:2026-10662 https://cve.radiocsirt.org/vuln/euvd-2026-270764 EUVD-2026-270764 https://cve.radiocsirt.org/vuln/euvd-2026-270764 https://cve.radiocsirt.org/vuln/fkie_cve-2026-27641 <p>Flask-Reuploaded provides file uploads for Flask. A critical path traversal and extension bypass vulnerability in versions prior to 1.5.0 allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI). Flask-Reuploaded has been patched in version 1.5.0. Some workarounds are available. Do not pass user input to the `name` parameter, use auto-generated filenames only, and implement strict input validation if `name` must be used.</p> <p>Flask-Reuploaded provides file uploads for Flask. A critical path traversal and extension bypass vulnerability in versions prior to 1.5.0 allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI). Flask-Reuploaded has been patched in version 1.5.0. Some workarounds are available. Do not pass user input to the `name` parameter, use auto-generated filenames only, and implement strict input validation if `name` must be used.</p> https://cve.radiocsirt.org/vuln/fkie_cve-2026-27641 https://cve.radiocsirt.org/vuln/ghsa-65mp-fq8v-56jr <p><strong>Affected:</strong> PyPI: flask-reuploaded</p> <p>### Impact A critical path traversal and extension bypass vulnerability in Flask-Reuploaded allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI).</p> <p>### Patches Flask-Reuploaded has been patched in version 1.5.0</p> <p>### Workarounds</p> <p>1. **Do not pass user input to the `name` parameter** 2. Use auto-generated filenames only 3. Implement strict input validation if `name` must be used</p> <p>```python from werkzeug.utils import secure_filename import os</p> <p># Sanitize user input before passing to save() safe_name = secure_filename(request.form.get(&#39;custom_name&#39;)) # Remove path separators safe_name = os.path.basename(safe_name) # Validate extension matches policy if not photos.extension_allowed(photos.get_extension(safe_name)): abort(400) filename = photos.save(file, name=safe_name) ```</p> <p>### Resources The fix is documented in the pull request, see https://github.com/jugmac00/flask-reuploaded/pull/180.</p> <p>A proper write-up was created by the reporter of the vulnerability, Jaron Cabral (https://www.linkedin.com/in/jaron-cabral-751994357/), but is not yet available as of time of this publication.</p> <p><strong>Affected:</strong> PyPI: flask-reuploaded</p> <p>### Impact A critical path traversal and extension bypass vulnerability in Flask-Reuploaded allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI).</p> <p>### Patches Flask-Reuploaded has been patched in version 1.5.0</p> <p>### Workarounds</p> <p>1. **Do not pass user input to the `name` parameter** 2. Use auto-generated filenames only 3. Implement strict input validation if `name` must be used</p> <p>```python from werkzeug.utils import secure_filename import os</p> <p># Sanitize user input before passing to save() safe_name = secure_filename(request.form.get(&#39;custom_name&#39;)) # Remove path separators safe_name = os.path.basename(safe_name) # Validate extension matches policy if not photos.extension_allowed(photos.get_extension(safe_name)): abort(400) filename = photos.save(file, name=safe_name) ```</p> <p>### Resources The fix is documented in the pull request, see https://github.com/jugmac00/flask-reuploaded/pull/180.</p> <p>A proper write-up was created by the reporter of the vulnerability, Jaron Cabral (https://www.linkedin.com/in/jaron-cabral-751994357/), but is not yet available as of time of this publication.</p> https://cve.radiocsirt.org/vuln/ghsa-65mp-fq8v-56jr https://cve.radiocsirt.org/vuln/pysec-2026-341 <p><strong>Affected:</strong> PyPI: flask-reuploaded</p> <p>### Impact A critical path traversal and extension bypass vulnerability in Flask-Reuploaded allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI).</p> <p>### Patches Flask-Reuploaded has been patched in version 1.5.0</p> <p>### Workarounds</p> <p>1. **Do not pass user input to the `name` parameter** 2. Use auto-generated filenames only 3. Implement strict input validation if `name` must be used</p> <p>```python from werkzeug.utils import secure_filename import os</p> <p># Sanitize user input before passing to save() safe_name = secure_filename(request.form.get(&#39;custom_name&#39;)) # Remove path separators safe_name = os.path.basename(safe_name) # Validate extension matches policy if not photos.extension_allowed(photos.get_extension(safe_name)): abort(400) filename = photos.save(file, name=safe_name) ```</p> <p>### Resources The fix is documented in the pull request, see https://github.com/jugmac00/flask-reuploaded/pull/180. A proper write-up was created by the reporter of the vulnerability, Jaron Cabral (https://www.linkedin.com/in/jaron-cabral-751994357/), but is not yet available as of time of this publication.</p> <p><strong>Affected:</strong> PyPI: flask-reuploaded</p> <p>### Impact A critical path traversal and extension bypass vulnerability in Flask-Reuploaded allows remote attackers to achieve arbitrary file write and remote code execution through Server-Side Template Injection (SSTI).</p> <p>### Patches Flask-Reuploaded has been patched in version 1.5.0</p> <p>### Workarounds</p> <p>1. **Do not pass user input to the `name` parameter** 2. Use auto-generated filenames only 3. Implement strict input validation if `name` must be used</p> <p>```python from werkzeug.utils import secure_filename import os</p> <p># Sanitize user input before passing to save() safe_name = secure_filename(request.form.get(&#39;custom_name&#39;)) # Remove path separators safe_name = os.path.basename(safe_name) # Validate extension matches policy if not photos.extension_allowed(photos.get_extension(safe_name)): abort(400) filename = photos.save(file, name=safe_name) ```</p> <p>### Resources The fix is documented in the pull request, see https://github.com/jugmac00/flask-reuploaded/pull/180. A proper write-up was created by the reporter of the vulnerability, Jaron Cabral (https://www.linkedin.com/in/jaron-cabral-751994357/), but is not yet available as of time of this publication.</p> https://cve.radiocsirt.org/vuln/pysec-2026-341