VULNERABILITY INTELLIGENCE

CVE-2026-42862

CVSS score7.6 HIGH
EPSS probability0.19%
CISA KEVNot currently listed
Published2026-06-08
Last modified2026-07-23
CVSS vectorCVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/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

Description

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.1.2, a mass assignment vulnerability exists in the tool update endpoint of FlowiseAI. The endpoint allows authenticated users to modify server-controlled properties such as workspaceId, createdDate, and updatedDate when updating a tool resource. Due to missing server-side validation and authorization checks, an attacker can manipulate the workspaceId field and reassign tools to arbitrary workspaces. This breaks tenant isolation in multi-workspace environments. This issue has been patched in version 3.1.2.

Weakness classification

  • CWE-284: Improper Access Control
  • CWE-639: Authorization Bypass Through User-Controlled Key
  • CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes

Primary references