CVE-2021-44657

high

Description

In StackStorm versions prior to 3.6.0, the jinja interpreter was not run in sandbox mode and thus allows execution of unsafe system commands. Jinja does not enable sandboxed mode by default due to backwards compatibility. Stackstorm now sets sandboxed mode for jinja by default.

References

https://stackstorm.com/2021/12/16/stackstorm-v3-6-0-released/

https://podalirius.net/en/articles/python-vulnerabilities-code-execution-in-jinja-templates/

https://github.com/pallets/jinja/issues/549

https://github.com/StackStorm/st2/pull/5359

Details

Source: Mitre, NVD

Published: 2021-12-15

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 9

Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 8.8

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity: High

EPSS

EPSS: 0.0256