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mesop-dev

6 known vulnerabilities.

mesop-dev at a glance

Last 12 months
5
Critical · all time
2
Exploited · all time
0
Public exploit · all time
1
New vulnerabilities per month · last 12 months
0 1 2 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 2 vulnerabilities, 2 critical Mar April 2026: 1 vulnerability May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 1 vulnerability September 2026: 1 vulnerability Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
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Products

6 results · Feed

  • Medium 5.3

    Mesop: Unauthenticated ANSI Escape Sequence Injection in CSP Reporting Endpoint

    Mesop is a Python-based UI framework that allows users to build web applications. Prior to 1.3.4, the unauthenticated /__csp__ endpoint passes attacker-controlled document-uri, blocked-uri, and violated-directive values to the csp_report handler in mesop/serv…

  • High 8.7

    Mesop: DoS in /hot-reload endpoint allows unauthenticated attacker to exhaust worker threads and crash the server

    Mesop is a Python-based UI framework that allows users to build web applications. Prior to 1.3.3, applications running in debug mode expose a GET /hot-reload endpoint whose unbounded loop depends on the user-supplied counter parameter, allowing an unauthentic…

  • High 7.5

    Mesop: Unbounded Thread Creation in WebSocket Handler Leads to Denial of Service

    Mesop is a Python-based UI framework that allows users to build web applications. From version 1.2.3 to before version 1.2.5, an uncontrolled resource consumption vulnerability exists in the WebSocket implementation of the Mesop framework. An unauthenticated …

  • Critical 9.8
    CVE-2026-33057 Public exploit

    Mesop Affected by Unauthenticated Remote Code Execution via Test Suite Route /exec-py

    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 authent…

  • Critical 10.0

    Mesop: Path Traversal utilizing `FileStateSessionBackend` leads to Application Denial of Service and File Write/Deletion

    Mesop is a Python-based UI framework that allows users to build web applications. Versions 1.2.2 and below contain a Path Traversal vulnerability that allows any user supplying an untrusted state_token through the UI stream payload to arbitrarily target files…

  • High 8.1

    Mesop Class Pollution vulnerability leads to DoS and Jailbreak attacks

    Mesop is a Python-based UI framework that allows users to build web applications. A class pollution vulnerability in Mesop prior to version 0.14.1 allows attackers to overwrite global variables and class attributes in certain Mesop modules during runtime. Thi…