CVE Watch13 oct 2026

CVE-2026-55376

Heym builds and runs agentic systems and business-process automations on self-hosted infrastructure. Prior to 0.0.40, an authenticated user

CVSS

8.8

Alto

EPSS

0.4%

p28

KEV

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Exploit Today

0-100

Publicado: 13 oct 2026 · Última mod.: 13 oct 2026 · CWE-78 · CWE-94 · CWE-693

EPSS · 30d

Sin historial EPSS suficiente todavía.

Descripción técnica

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.

Referencias oficiales

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