CVE-2026-41277: 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, a Mass Assignment vulnerability in the DocumentStore creation endpoint allows authenticated users to control the primary key (id) and internal state fields of DocumentStore entities. Because the service uses repository.save() with a client-supplied primary key, the POST create endpoint behaves as an implicit UPSERT operation. This enables overwriting existing DocumentStore objects. In multi-workspace or multi-tenant deployments, this can lead to cross-workspace object takeover and broken object-level authorization (IDOR), allowing an attacker to reassign or modify DocumentStore objects belonging to other workspaces. This vulnerability is fixed in 3.1.0.
Tags
- CVE
- CVE-2026-41277
- cvss:HIGH
Classification
Rationale: Mass assignment vulnerability allows authenticated users to overwrite other workspaces' data, causing cross-workspace object takeover and broken authorization.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8