CVE-2026-40320CWE-1336

Giskard has an Unsandboxed Jinja2 Template Rendering in ConformityCheck

Medium · published April 17, 2026

CVSS v4.0
5.4
EPSS
0%
Percentile
10.9
In the wild
Unconfirmed
What it is

Giskard is an open-source testing framework for AI models. In versions prior to 1.0.2b1, the ConformityCheck class rendered the rule parameter through Jinja2's default Template() constructor, silently interpreting template expressions at runtime. If check definitions are loaded from an untrusted source, a crafted rule string could achieve arbitrary code execution. Exploitation requires write access to a check definition and subsequent execution of the test suite. This issue has been fixed in giskard-checks version 1.0.2b1.

The record
Technical detail
CVSS v4.0
5.4 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:L
EPSS
0.00212 · 10.9th percentile
Weakness
CWE-1336 · Improper Neutralization of Special Elements Used in a Template Engine
Published
2026-04-17T17:25Z
EPSS history
Timeline
  • 17 APR 17:25Z
    Giskard has an Unsandboxed Jinja2 Template Rendering in ConformityCheck
    cvelistv5