CVE-2026-42863

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 chatflow update endpoint of FlowiseAI. The endpoint allows clients to modify server-controlled properties such as deployed, isPublic, workspaceId, createdDate, and updatedDate when updating a chatflow object. Due to missing server-side validation and authorization checks, an authenticated user can manipulate internal attributes of a chatflow and reassign it to another workspace. This allows cross-workspace resource reassignment and unauthorized modification of deployment and visibility settings. This issue has been patched in version 3.1.2.

CVSS v3 8.1 HIGH

8.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.1.2	Product Release Notes
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-5wxp-qjgq-fx6m	Exploit Vendor Advisory
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-5wxp-qjgq-fx6m	Exploit Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-06-08 16:16

Updated : 2026-07-23 07:10

NVD link : CVE-2026-42863

Mitre link : CVE-2026-42863

CVE.ORG link : CVE-2026-42863

JSON object : View

Products Affected

flowiseai

flowise

CWE

CWE-284

Improper Access Control

CWE-639

Authorization Bypass Through User-Controlled Key

CWE-915

Improperly Controlled Modification of Dynamically-Determined Object Attributes

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Prior to version 3.1.2, a mass assignment vulnerability exists in the chatflow update endpoint of FlowiseAI. The endpoint allows clients to modify server-controlled properties such as deployed, isPublic, workspaceId, createdDate, and updatedDate when updating a chatflow object. Due to missing server-side validation and authorization checks, an authenticated user can manipulate internal attributes of a chatflow and reassign it to another workspace. This allows cross-workspace resource reassignment and unauthorized modification of deployment and visibility settings. This issue has been patched in version 3.1.2."}, {"lang": "es", "value": "Flowise es una interfaz de usuario de arrastrar y soltar para construir un flujo de modelo de lenguaje grande personalizado. Antes de la versi\u00f3n 3.1.2, existe una vulnerabilidad de asignaci\u00f3n masiva en el endpoint de actualizaci\u00f3n de chatflow de FlowiseAI. El endpoint permite a los clientes modificar propiedades controladas por el servidor como deployed, isPublic, workspaceId, createdDate y updatedDate al actualizar un objeto chatflow. Debido a la falta de validaci\u00f3n del lado del servidor y de comprobaciones de autorizaci\u00f3n, un usuario autenticado puede manipular atributos internos de un chatflow y reasignarlo a otro espacio de trabajo. Esto permite la reasignaci\u00f3n de recursos entre espacios de trabajo y la modificaci\u00f3n no autorizada de la configuraci\u00f3n de despliegue y visibilidad. Este problema ha sido parcheado en la versi\u00f3n 3.1.2."}], "lastModified": "2026-07-23T07:10:00.113", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7CB8FEE7-C35E-4F6A-A394-033B158A1552", "versionEndExcluding": "3.1.2"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}