# documentación de Django - 5.1.7

# Django 3.2.11 release notes

January 4, 2022

Django 3.2.11 fixes one security issue with severity «medium» and two security issues with severity «low» in 3.2.10.

## CVE-2021-45115: Denial-of-service possibility in `UserAttributeSimilarityValidator`

`UserAttributeSimilarityValidator` incurred significant overhead evaluating submitted password that were artificially large in relative to the comparison values. On the assumption that access to user registration was unrestricted this provided a potential vector for a denial-of-service attack.

In order to mitigate this issue, relatively long values are now ignored by `UserAttributeSimilarityValidator`.

This issue has severity «medium» according to the Django security policy.

## CVE-2021-45116: Potential information disclosure in `dictsort` template filter

Due to leveraging the Django Template Language’s variable resolution logic, the `dictsort` template filter was potentially vulnerable to information disclosure or unintended method calls, if passed a suitably crafted key.

In order to avoid this possibility, `dictsort` now works with a restricted resolution logic, that will not call methods, nor allow indexing on dictionaries.

As a reminder, all untrusted user input should be validated before use.

This issue has severity «low» according to the Django security policy.

## CVE-2021-45452: Potential directory-traversal via `Storage.save()`

`Storage.save()` allowed directory-traversal if directly passed suitably crafted file names.

This issue has severity «low» according to the Django security policy.