Mesop AI Sandbox <= 1.2.2 - Remote Code Execution

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. id:...

PYSEC-2026-1624 Mesop Class Pollution vulnerability leads to DoS and Jailbreak attacks

From @jackfromeast and @superboy-zjc: We have identified a class pollution vulnerability in Mesop = 0.14.0 application that allows attackers to overwrite global variables and class attributes in certain Mesop modules during runtime. This vulnerability could directly lead to a denial of service Do...

PYSEC-2026-1625 Mesop has a local file Inclusion via static file serving functionality

A vulnerability has been discovered and fixed in Mesop that could potentially allow unauthorized access to files on the server hosting the Mesop application. The vulnerability was related to insufficient input validation in a specific endpoint. This could have allowed an attacker to access files...

Arbitrary Code Injection

Overview mesop is a Build UIs in Python Affected versions of this package are vulnerable to Arbitrary Code Injection due to an explicit web endpoint inside the ai/ testing module infrastructure directly ingests untrusted Python code strings unconditionally without authentication measures, yieldin...

CVE-2026-34824

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 attacker can send a rapid succession o...

Out-of-bounds Read

Overview mesop is a Build UIs in Python Affected versions of this package are vulnerable to Out-of-bounds Read through the WebSocket handler. An attacker can exhaust system resources and cause service outages by sending a rapid succession of WebSocket messages, which forces the server to spawn an...

CVE-2026-34824

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 attacker can send a rapid succession o...

PYSEC-2026-2204

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 attacker can send a rapid succession o...

CVE-2026-34824 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 attacker can send a rapid succession o...

CVE-2026-34824

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 attacker can send a rapid succession o...

CVE-2026-34824 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 attacker can send a rapid succession o...

CVE-2026-34824

CVE-2026-34824 targets the Mesop Python-based UI framework. A vulnerability in the WebSocket handler from version 1.2.3 up to, but not including, 1.2.5 allows an unauthenticated attacker to flood the server with rapid WebSocket messages, causing unbounded thread creation. This thread exhaustion l...

CVE-2026-34824 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 attacker can send a rapid succession o...

GHSA-3JR7-6HQP-X679 Mesop: Unbounded Thread Creation in WebSocket Handler Leads to Denial of Service

Summary An uncontrolled resource consumption vulnerability exists in the WebSocket implementation of the Mesop framework. An unauthenticated attacker can send a rapid succession of WebSocket messages, forcing the server to spawn an unbounded number of operating system threads. This leads to threa...

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

Summary An uncontrolled resource consumption vulnerability exists in the WebSocket implementation of the Mesop framework. An unauthenticated attacker can send a rapid succession of WebSocket messages, forcing the server to spawn an unbounded number of operating system threads. This leads to threa...

PT-2026-30269

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 attacker can send a rapid succession o...

Mesop 安全漏洞

Mesop is a fast-building Python web application UI framework developed by Mesop OpenSource. Versions of Mesop from 1.2.3 to 1.2.5 contained security vulnerabilities. These vulnerabilities were due to uncontrolled resource consumption issues in the WebSocket implementation. This could allow...

CVE-2026-33054

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 statetoken through the UI stream payload to arbitrarily target files on the disk under the standard...

CVE-2026-33057

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...

dyad (=0.1.1), dyad-app (>=0.1.0 <=0.1.2) potentially affected by CVE-2026-33054 via mesop (=1.0.0rc1)

mesop PYPI version =1.0.0rc1 is affected by a known vulnerability. The following packages have a transitive dependency on mesop and may be impacted: - dyad =0.1.1 - dyad-app =0.1.0, =0.1.2 Source cves: CVE-2026-33054 Source advisory: SNYK:PYTHON-MESOP-15703509...