CVE-2026-34172

Giskard is an open-source Python library for testing and evaluating agentic systems. Prior to versions 0.3.4 and 1.0.2b1, ChatWorkflow.chatmessage passes its string argument directly as a Jinja2 template source to a non-sandboxed Environment. A developer who passes user input to this method enabl...

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

Giskard is an open-source Python library for testing and evaluating agentic systems. Prior to versions 0.3.4 and 1.0.2b1, ChatWorkflow.chatmessage passes its string argument directly as a Jinja2 template source to a non-sandboxed Environment. A developer who passes user input to this method enabl...

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

Giskard is an open-source Python library for testing and evaluating agentic systems. Prior to versions 0.3.4 and 1.0.2b1, ChatWorkflow.chatmessage passes its string argument directly as a Jinja2 template source to a non-sandboxed Environment. A developer who passes user input to this method enabl...

CVE-2026-34172

CVE-2026-34172 is observable in the GitHub advisory for Giskard Agents, describing a server-side template injection via ChatWorkflow.chat() that passes user input as a Jinja2 template to a non-sandboxed Environment. The root cause is that a string message is converted to a Template and rendered w...

GHSA-FRV4-X25R-588M Giskard Agents have Server-side template injection via ChatWorkflow.chat() using non-sandboxed Jinja2 Environment

Summary ChatWorkflow.chatmessage 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 naturall...