CVE-2024-56326

Jinja is an extensible templating engine. Prior to 3.1.5, An oversight in how the Jinja sandboxed environment detects calls to str.format 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 store a reference to a malicious string's format method, then pass that to a filter that calls it. No such filters are built-in to Jinja, but could be present through custom filters in an application. After the fix, such indirect calls are also handled by the sandbox. This vulnerability is fixed in 3.1.5.

Affected products

Alt Linux, Almalinux, Astra Linux, Centos, Debian, Jinja, Linuxmint, Red Hat

Palletsprojects Jinja

< 3.1.5

Fix

Available

CVSS 3.1

7.8 HIGH

EPSS

0.5% (41th percentile)

Weakness

CWE-1336, CWE-693

NVD status

Modified

Published

2024-12-23

No exploit for CVE-2024-56326 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.