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CVE-2026-34172— Giskard Agents have Server-side template injection via ChatWorkflow.chat() using non-sandboxed Jinja2 Environment

Quick assessment

Affected
Giskard-AI giskard-oss
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Giskard是Giskard开源的一个人工智能系统的评估与测试框架。 Giskard 0.3.4之前版本和1.0.2b1之前版本存在安全漏洞，该漏洞源于ChatWorkflow.chat(message)将其字符串参数直接作为Jinja2模板源传递给非沙盒环境，可能导致通过Jinja2类遍历实现完整的远程代码执行。

AI Predicted 9.8 Difficulty: Easy EPSS 0.84% · P57
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I. Basic Information for CVE-2026-34172

Vulnerability Information
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Vulnerability Title
Giskard Agents have Server-side template injection via ChatWorkflow.chat() using non-sandboxed Jinja2 Environment
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
CWE-1336
Source: CVE Program / CVE List V5
Vulnerability Title
Giskard 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Giskard是Giskard开源的一个人工智能系统的评估与测试框架。 Giskard 0.3.4之前版本和1.0.2b1之前版本存在安全漏洞，该漏洞源于ChatWorkflow.chat(message)将其字符串参数直接作为Jinja2模板源传递给非沙盒环境，可能导致通过Jinja2类遍历实现完整的远程代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Giskard-AI giskard-oss < 0.3.4 -

II. Public POCs for CVE-2026-34172

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III. Intelligence Information for CVE-2026-34172

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Vendor Advisories for CVE-2026-34172 (1)

IV. Related Vulnerabilities

Same product: giskard-oss
Same vendor: Giskard-AI
Same weakness: CWE-1336

V. Comments for CVE-2026-34172

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