CVE-2026-41277

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.

The following products are affected by CVE-2026-41277 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-41277.

URL	Resource
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3prp-9gf7-4rxx