CVE-2026-34172

Description

Giskard is an open-source Python library for testing and evaluating agentic systems. Prior to versions 0.3.4 and 1.0.2b1, ChatWorkflow.chat(message) passes its string argument directly as a Jinja2 template source to a non-sandboxed Environment. A developer who passes user input to this method enables full remote code execution via Jinja2 class traversal. The method name chat and parameter name message naturally invite passing user input directly, but the string is silently parsed as a Jinja2 template, not treated as plain text. This issue has been patched in versions 0.3.4 and 1.0.2b1.

Risk Information

Base Score

8.8

MODERATE

Vector

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

EPSS Score

Exploitation Probability

0.291

Associated Vulnerability

Vulnerability	OS Platform
Vulnerabilities CVE-2026-34172 are fixed in Python-giskard-agents 0.3.4	Windows
Vulnerabilities CVE-2026-34172 are fixed in Python-giskard-agents 1.0.2b1	Windows
Vulnerabilities CVE-2026-34172 are fixed in Python-giskard-agents for linux 0.3.4	Linux
Vulnerabilities CVE-2026-34172 are fixed in Python-giskard-agents for linux 1.0.2b1	Linux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234