Security update for python-Jinja2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2025:20156-1 Final 1 1 2025-03-24T09:41:28Z current 2025-03-24T09:41:28Z 2025-03-24T09:41:28Z 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-2025-27516: Fixed sandbox breakout through attr filter selecting format method (bsc#1238879). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-SLE-Micro-6.0-255 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-202520156-1/ Link for SUSE-SU-2025:20156-1 https://lists.suse.com/pipermail/sle-security-updates/2025-June/021182.html E-Mail link for SUSE-SU-2025:20156-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1238879 SUSE Bug 1238879 https://www.suse.com/security/cve/CVE-2025-27516/ SUSE CVE CVE-2025-27516 page SUSE Linux Micro 6.0 python311-Jinja2-3.1.2-8.1 python311-Jinja2-3.1.2-8.1 as a component of SUSE Linux Micro 6.0 Jinja is an extensible templating engine. Prior to 3.1.6, an oversight in how the Jinja sandboxed environment interacts with the |attr filter allows an attacker that controls the content of a template to execute arbitrary Python code. To exploit the vulnerability, an attacker needs to control the content of a template. Whether that is the case depends on the type of application using Jinja. This vulnerability impacts users of applications which execute untrusted templates. Jinja's sandbox does catch calls to str.format and ensures they don't escape the sandbox. However, it's possible to use the |attr filter to get a reference to a string's plain format method, bypassing the sandbox. After the fix, the |attr filter no longer bypasses the environment's attribute lookup. This vulnerability is fixed in 3.1.6. CVE-2025-27516 SUSE Linux Micro 6.0:python311-Jinja2-3.1.2-8.1 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-202520156-1/ https://www.suse.com/security/cve/CVE-2025-27516.html CVE-2025-27516 https://bugzilla.suse.com/1238879 SUSE Bug 1238879