CVE-2026-34172
March 31, 2026
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.
Affected Packages
giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=0.3.0 <0.3.4Fix Suggestion:
Update to version 0.3.4giskard-agents (PYTHON):
Affected version(s) >=1.0.1a1 <1.0.2b1Fix Suggestion:
Update to version 1.0.2b1Related Resources (2)
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Contact UsCVSS v4
Base Score:
7.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
PRESENT
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.8
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Weakness Type (CWE)
Improper Neutralization of Special Elements Used in a Template Engine
