Description


Heym builds and runs agentic systems and business-process automations on self-hosted infrastructure. Prior to 0.0.40, an authenticated user who can create or edit a workflow with an Agent custom Python tool can bypass the blacklist-based sandbox in backend/app/services/python_tool_executor.py because allowed standard-library modules expose operating-system, process, and filesystem capabilities through public attributes that pass _safe_import() and _validate_code_safety(). The runner then executes the supplied tool with exec(), permitting commands and file operations as the backend application user; self-registration affects reachability, but portal triggering alone does not grant code control. This issue is fixed in 0.0.40.

Related CPE's


Could not find any relations

Weaknesses



CWE-78CWE-94CWE-693

CVSS impact metrics


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

8.8 · High

Information


Source identifier

[email protected]

Vulnerability status

Deferred

Published

2026-10-13T16:17:21.720Z

1 hour ago

Last modified

2026-10-13T16:17:21.853Z

1 hour ago