Giskard-AI giskard-oss up to 1.0.2b0 Rule Template special elements used in a template engine

Summaryinfo

A vulnerability classified as problematic has been found in Giskard-AI giskard-oss up to 1.0.2b0. This affects the function Template of the component Rule Handler. The manipulation leads to improper neutralization of special elements used in a template engine. This vulnerability is documented as CVE-2026-40320. The attack needs to be performed locally. There is not any exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Giskard-AI giskard-oss up to 1.0.2b0. It has been rated as problematic. This issue affects the function Template of the component Rule Handler. The manipulation with an unknown input leads to a improper neutralization of special elements used in a template engine vulnerability. Using CWE to declare the problem leads to CWE-1336. The product uses a template engine to insert or process externally-influenced input, but it does not neutralize or incorrectly neutralizes special elements or syntax that can be interpreted as template expressions or other code directives when processed by the engine. Impacted is confidentiality, integrity, and availability. The summary by CVE 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.

It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2026-40320 since 04/10/2026. The exploitation is known to be easy. Attacking locally is a requirement. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1221 according to MITRE ATT&CK.

Upgrading to version 1.0.2b1 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Type

• Artificial Intelligence Software

Vendor

• Giskard-AI

Name

• giskard-oss

Version

• 1.0.2b0

Website

• Product: https://github.com/Giskard-AI/giskard-oss/

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