RHSA-2021:4161 — Security Advisory
Red Hat Security Advisory: python-jinja2 security update
Severity
ModerateRed Hat Product Security
Products
Official CSAF product identity
Published · November 10, 2021
Updated · July 3, 2026
Topic
An update for python-jinja2 is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Description
The python-jinja2 package contains Jinja2, a template engine written in pure Python. Jinja2 provides a Django inspired non-XML syntax but supports inline expressions and an optional sandboxed environment.
Security Fix(es):
- python-jinja2: ReDoS vulnerability due to the sub-pattern (CVE-2020-28493)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Additional Changes:
For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section.