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Debian LTS Advisory DLA-3715-1                debian-lts@lists.debian.org
https://www.debian.org/lts/security/                           Chris Lamb
January 23, 2024                              https://wiki.debian.org/LTS
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Package        : jinja2
Version        : 2.10-2+deb10u1
CVE ID         : CVE-2024-22195
Debian Bug     : 1060748

It was discovered that there was an injection attack in jinja2, a
popular templating engine used in various Python applications.

It was possible to inject arbitrary HTML attributes into rendered
HTML via the "xmlattr" filter, potentially leading to a Cross-Site
Scripting (XSS) attack. It may also have been possible to bypass
attribute validation checks if they were blacklist-based. 

For Debian 10 buster, this problem has been fixed in version
2.10-2+deb10u1.

We recommend that you upgrade your jinja2 packages.

For the detailed security status of jinja2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/jinja2

Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS