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I. Basic Information for CVE-2026-33057
Vulnerability Information

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Vulnerability Title
Mesop Affected by Unauthenticated Remote Code Execution via Test Suite Route /exec-py
Source: NVD (National Vulnerability Database)
Vulnerability Description
Mesop is a Python-based UI framework that allows users to build web applications. In versions 1.2.2 and below, an explicit web endpoint inside the ai/ testing module infrastructure directly ingests untrusted Python code strings unconditionally without authentication measures, yielding standard Unrestricted Remote Code Execution. Any individual capable of routing HTTP logic to this server block will gain explicit host-machine command rights. The AI codebase package includes a lightweight debugging Flask server inside ai/sandbox/wsgi_app.py. The /exec-py route accepts base_64 encoded raw string payloads inside the code parameter natively evaluated by a basic POST web request. It saves it rapidly to the operating system logic path and injects it recursively using execute_module(module_path...). This issue has been fixed in version 1.2.3.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/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
Mesop 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mesop是Mesop开源的一个快速构建Python Web应用的UI框架。 Mesop 1.2.2及之前版本存在代码注入漏洞,该漏洞源于ai/测试模块中的/exec-py端点无条件执行未经验证的Python代码,可能导致远程代码执行。
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
VendorProductAffected VersionsCPESubscribe
mesop-devmesop < 1.2.3 -
II. Public POCs for CVE-2026-33057
#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
kimi-k2.5 · 3817 chars
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III. Intelligence Information for CVE-2026-33057
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IV. Related Vulnerabilities
V. Comments for CVE-2026-33057

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