PT-2026-34745 · Flowiseai · Flowise

Published 2026-04-23 · Updated 2026-04-23 · CVE-2026-41277

NVD

CVSS v4.0

7.6

High

AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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.

Fix

IDOR

Improper Access Control

Weakness Enumeration

CWE-639

CWE-284

CWE-915

Related Identifiers

CVE-2026-41277

Affected Products

Flowise

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-41277 · Security Note
• https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-3prp-9gf7-4rxx · Note