# Django 5.2.9 - dokumentacja

# Django 2.2.11 release notes

March 4, 2020

Django 2.2.11 fixes a security issue and a data loss bug in 2.2.10.

## CVE-2020-9402: Potential SQL injection via `tolerance` parameter in GIS functions and aggregates on Oracle

GIS functions and aggregates on Oracle were subject to SQL injection, using a suitably crafted `tolerance`.

## Poprawki błędów

- Fixed a data loss possibility in the `select_for_update()`. When using related fields or parent link fields with Dziedziczenie wielotabelowe in the `of` argument, the corresponding models were not locked (#31246).