CVE-2026-41267

CriticalCVSS 9.8/10Last modified Oct 26, 2026

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, an improper mass assignment (JSON injection) vulnerability in the account registration endpoint of Flowise Cloud allows unauthenticated attackers to inject server-managed fields and nested objects during account creation. This enables client-controlled manipulation of ownership metadata, timestamps, organization association, and role mappings, breaking trust boundaries in a multi-tenant environment. This vulnerability is fixed in 3.1.0.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-639CWE-915

Affected software

VendorProductVersions
FlowiseAIFlowise< 3.1.0

References

Timeline

Published
Apr 23, 2026
Last modified
Oct 26, 2026
NVD status
Analyzed

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CVE-2026-41267: Critical severity, CVSS 9.8 | Vulnix