CVE-2024-22195

Name	CVE-2024-22195
Description	Jinja is an extensible templating engine. Special placeholders in the template allow writing code similar to Python syntax. It is possible to inject arbitrary HTML attributes into the rendered HTML template, potentially leading to Cross-Site Scripting (XSS). The Jinja `xmlattr` filter can be abused to inject arbitrary HTML attribute keys and values, bypassing the auto escaping mechanism and potentially leading to XSS. It may also be possible to bypass attribute validation checks if they are blacklist-based.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
References	DLA-3715-1
Debian Bugs	1060748

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
jinja2 (PTS)	buster	2.10-2	vulnerable
	buster (security)	2.10-2+deb10u1	fixed
	bullseye	2.11.3-1	vulnerable
	bookworm	3.1.2-1	vulnerable
	sid, trixie	3.1.3-1	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
jinja2	source	buster	2.10-2+deb10u1		DLA-3715-1
jinja2	source	(unstable)	3.1.3-1			1060748

Notes

[bookworm] - jinja2 <no-dsa> (Minor issue)
[bullseye] - jinja2 <no-dsa> (Minor issue)
https://github.com/pallets/jinja/security/advisories/GHSA-h5c8-rqwp-cp95
Fixed by: https://github.com/pallets/jinja/commit/7dd3680e6eea0d77fde024763657aa4d884ddb23 (3.1.3)