[Snyk] Security upgrade python from 3.11.0b3-slim to 3.14.3-slim

[SPH73]

Snyk has created this PR to fix 3 vulnerabilities in the dockerfile dependencies of this project.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image.

Snyk changed the following file(s):

• Dockerfile

We recommend upgrading to python:3.14.3-slim, as this image has only 26 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected.

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Out-of-bounds Write SNYK-DEBIAN11-GLIBC-5927133	829
	Out-of-bounds Write SNYK-DEBIAN11-GLIBC-5927133	829
	Allocation of Resources Without Limits or Throttling SNYK-DEBIAN11-SYSTEMD-6277510	721
	Allocation of Resources Without Limits or Throttling SNYK-DEBIAN11-SYSTEMD-6277510	721
	CVE-2024-37371 SNYK-DEBIAN11-KRB5-7411316	714

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Important

• Check the changes in this PR to ensure they won't cause issues with your project.
• Max score is 1000. Note that the real score may have changed since the PR was raised.
• This PR was automatically created by Snyk using the credentials of a real user.

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Learn how to fix vulnerabilities with free interactive lessons:

🦉 Out-of-bounds Write
🦉 Allocation of Resources Without Limits or Throttling

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Note

Medium Risk
Python runtime and underlying Debian package versions change, which can introduce dependency/runtime incompatibilities despite the diff being small.

Overview
Updates the Docker base image from python:3.11.0b3-slim to python:3.14.3-slim to pick up upstream security fixes and reduce known OS/package vulnerabilities.

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Python version incompatibility with project dependencies

High Severity

Upgrading to python:3.14.3-slim creates a major compatibility issue with the project's dependencies. The Pipfile explicitly requires python_version = "3.8", and the locked dependencies (Django 3.1.4, psycopg2-binary 2.8.6, etc.) are from 2020-2021 and do not support Python 3.14. Django 3.1 only supports Python 3.6 through 3.9. The pipenv install --system command will likely fail or produce a broken environment, and the application will not run correctly on Python 3.14.