CVE-2026-33057— Mesop Affected by Unauthenticated Remote Code Execution via Test Suite Route /exec-py
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-33057
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
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)
Shenlong Deep Dive — AI Deep Analysis
10-question deep dive: root cause, exploitation, mitigation, urgency. Read summary free, full version requires login.
Affected Products
II. Public POCs for CVE-2026-33057
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Mesop <= 1.2.2 contains an unrestricted remote code execution caused by unauthenticated ingestion and execution of base64-encoded Python code in the /exec-py endpoint of ai/testing module, letting attackers execute arbitrary commands on the host, exploit requires HTTP access to the server. | https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-33057.yaml | POC Details |
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-33057
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same product: mesop
Same weakness: CWE-94
- CVE-2021-47939
Evolution CMS 3.1.6 Authenticated Remote Code Execution via - CVE-2021-47938
ImpressCMS 1.4.2 Remote Code Execution via Autotasks - CVE-2021-47935
Sentry 8.2.0 Remote Code Execution via Pickle Deserializatio - CVE-2022-50944
Aero CMS 0.0.1 PHP Code Injection via posts.php - CVE-2026-8211
codelibs Fess JSP File AdminDesignAction.java update code in
V. Comments for CVE-2026-33057
No comments yet