CVE-2026-9130

IBM Langflow OSS 1.0.0 through 1.10.3 contain an authorization bypass vulnerability in the MemoryComponent that allows authenticated users to access chat history of other users via session_id collision. The MemoryComponent.retrieve_messages and store_message methods filter on session_id without validating flow_id or user_id ownership, enabling cross-user information disclosure through multiple authenticated API endpoints including /api/v1/run/*, /api/v1/responses, and /api/v2/workflow/*. This vulnerability only affects multi-user deployments with LANGFLOW_AUTO_LOGIN=False.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7282647	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

History

23 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) IBM Langflow OSS 1.0.0 hasta 1.10.3 contienen una vulnerabilidad de omisión de autorización en el MemoryComponent que permite a usuarios autenticados acceder al historial de chat de otros usuarios mediante colisión de session_id. Los métodos MemoryComponent.retrieve_messages y store_message filtran por session_id sin validar la propiedad de flow_id o user_id, lo que permite la revelación de información entre usuarios a través de múltiples puntos finales de API autenticados, incluyendo /api/v1/run/, /api/v1/responses y /api/v2/workflow/. Esta vulnerabilidad solo afecta a implementaciones multiusuario con LANGFLOW_AUTO_LOGIN=False.

Information

Published : 2026-08-05 19:17

Updated : 2026-10-24 13:10

NVD link : CVE-2026-9130

Mitre link : CVE-2026-9130

CVE.ORG link : CVE-2026-9130

JSON object : View

Products Affected

langflow

langflow

CWE

NVD-CWE-noinfo CWE-639

Authorization Bypass Through User-Controlled Key

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