| Component | Flowise |
| Severity | high (CVSS 8.8) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| Published (NVD) | 2026-04-23 |
| Last modified | 2026-06-17 |
| Affected versions | flowise < 3.1.0 |
| Fixed in | 3.1.0 |
| Weakness | CWE-284CWE-639CWE-915 |
| CISA KEV | not listed |
NVD description
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.
What to do
- Upgrade Flowise to
3.1.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
Other Flowise CVEs
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