Django 4.1.12 release notes¶
October 4, 2023
Django 4.1.12 fixes a security issue with severity “moderate” in 4.1.11.
CVE-2023-43665: Denial-of-service possibility in
Following the fix for CVE-2019-14232, the regular expressions used in the
html=True) were revised and improved. However, these regular
expressions still exhibited linear backtracking complexity, so when given a
very long, potentially malformed HTML input, the evaluation would still be
slow, leading to a potential denial of service vulnerability.
The input processed by
Truncator, when operating in HTML mode, has been
limited to the first five million characters in order to avoid potential
performance and memory issues.