Security update for python-Jinja2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:20035-1 Final 1 1 2025-02-03T08:53:00Z current 2025-02-03T08:53:00Z 2025-02-03T08:53:00Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for python-Jinja2 This update for python-Jinja2 fixes the following issues: - CVE-2024-34064, CVE-2024-22195: HTML attribute injection when passing user input as keys to xmlattr filter (bsc#1223980, bsc#1218722) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Micro-6.0-37 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2025/suse-su-202520035-1/ Link for SUSE-SU-2025:20035-1 https://lists.suse.com/pipermail/sle-security-updates/2025-June/021356.html E-Mail link for SUSE-SU-2025:20035-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1218722 SUSE Bug 1218722 https://bugzilla.suse.com/1223980 SUSE Bug 1223980 https://www.suse.com/security/cve/CVE-2024-22195/ SUSE CVE CVE-2024-22195 page https://www.suse.com/security/cve/CVE-2024-34064/ SUSE CVE CVE-2024-34064 page SUSE Linux Micro 6.0 python311-Jinja2-3.1.2-6.1 python311-Jinja2-3.1.2-6.1 as a component of SUSE Linux Micro 6.0 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. CVE-2024-22195 SUSE Linux Micro 6.0:python311-Jinja2-3.1.2-6.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520035-1/ https://www.suse.com/security/cve/CVE-2024-22195.html CVE-2024-22195 https://bugzilla.suse.com/1218722 SUSE Bug 1218722 https://bugzilla.suse.com/1223980 SUSE Bug 1223980 Jinja is an extensible templating engine. The `xmlattr` filter in affected versions of Jinja accepts keys containing non-attribute characters. XML/HTML attributes cannot contain spaces, `/`, `>`, or `=`, as each would then be interpreted as starting a separate attribute. If an application accepts keys (as opposed to only values) as user input, and renders these in pages that other users see as well, an attacker could use this to inject other attributes and perform XSS. The fix for CVE-2024-22195 only addressed spaces but not other characters. Accepting keys as user input is now explicitly considered an unintended use case of the `xmlattr` filter, and code that does so without otherwise validating the input should be flagged as insecure, regardless of Jinja version. Accepting _values_ as user input continues to be safe. This vulnerability is fixed in 3.1.4. CVE-2024-34064 SUSE Linux Micro 6.0:python311-Jinja2-3.1.2-6.1 moderate To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2025/suse-su-202520035-1/ https://www.suse.com/security/cve/CVE-2024-34064.html CVE-2024-34064 https://bugzilla.suse.com/1223980 SUSE Bug 1223980