LLMHigh
CVE-2026-30820: Flowise is a drag & drop user interface to build a customized large language model flow. Prior to ve…
- Occurred
- Mar 7, 2026
- Published
- Mar 7, 2026
- Source
- NVD CVE
Summary
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, Flowise trusts any HTTP client that sets the header x-request-from: internal, allowing an authenticated tenant session to bypass all /api/v1/** authorization checks. With only a browser cookie, a low-privilege tenant can invoke internal administration endpoints (API key management, credential stores, custom function execution, etc.), effectively escalating privilege. This issue has been patched in version 3.0.13.
Tags
- CVE
- CVE-2026-30820
- cvss:HIGH
Classification
Category confidence: 90%
Severity confidence: 85%
Rationale: Flowise is an LLM orchestration tool with a critical authorization bypass vulnerability allowing privilege escalation.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8