LLMHigh
CVE-2026-41269: Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.…
- Occurred
- Apr 23, 2026
- Published
- Apr 23, 2026
- Source
- NVD CVE
Summary
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the Chatflow configuration file upload settings can be modified to allow the application/javascript MIME type. This lets an attacker upload .js files even though the frontend doesn’t normally allow JavaScript uploads. This enables attackers to persistently store malicious Node.js web shells on the server, potentially leading to Remote Code Execution (RCE). This vulnerability is fixed in 3.1.0.
Tags
- CVE
- CVE-2026-41269
- cvss:HIGH
Classification
Category confidence: 90%
Severity confidence: 85%
Rationale: CVE describes a vulnerability in an LLM workflow tool allowing RCE via malicious file upload.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8