CVE-2026-27952— Agenta has Python Sandbox Escape, Leading to Remote Code Execution (RCE)
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I. Basic Information for CVE-2026-27952
Vulnerability Information
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Vulnerability Title
Agenta has Python Sandbox Escape, Leading to Remote Code Execution (RCE)
Source: NVD (National Vulnerability Database)
Vulnerability Description
Agenta is an open-source LLMOps platform. In Agenta-API prior to version 0.48.1, a Python sandbox escape vulnerability existed in Agenta's custom code evaluator. Agenta used RestrictedPython as a sandboxing mechanism for user-supplied evaluator code, but incorrectly whitelisted the `numpy` package as safe within the sandbox. This allowed authenticated users to bypass the sandbox and achieve arbitrary code execution on the API server. The escape path was through `numpy.ma.core.inspect`, which exposes Python's introspection utilities — including `sys.modules` — thereby providing access to unfiltered system-level functionality like `os.system`. This vulnerability affects the Agenta self-hosted platform (API server), not the SDK when used as a standalone Python library. The custom code evaluator runs server-side within the API process. The issue is fixed in v0.48.1 by removing `numpy` from the sandbox allowlist. In later versions (v0.60+), the RestrictedPython sandbox was removed entirely and replaced with a different execution model.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Agenta 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Agenta是agenta开源的一个用于构建生产级大型语言模型应用的平台。 Agenta 0.48.1之前版本存在代码注入漏洞，该漏洞源于沙箱错误允许numpy包，可能导致任意代码执行。
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 |
|---|---|---|---|---|
| Agenta-AI | agenta-api | < 0.48.1 | - |
II. Public POCs for CVE-2026-27952
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