CVE-2026-9103

IBM Langflow OSS 1.0.0 through 1.10.0 could allow a remote attacker to gain unauthorized access due to improper authentication in the /api/v1/login/auto_login endpoint. The endpoint issues long-lived superuser bearer tokens without requiring authentication when the AUTO_LOGIN configuration is enabled (enabled by default), which may allow an unauthenticated network attacker to obtain full administrative access. Additionally, permissive cross-origin resource sharing (CORS) settings may allow tokens to be exposed to unintended origins, increasing the risk of unauthorized access.

CVSS v3 9.8 CRITICAL

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.ibm.com/support/pages/node/7278926	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

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

OR	cpe:2.3:o:apple:macos:-:::::::*
	cpe:2.3:o:linux:linux_kernel:-:::::::*
	cpe:2.3:o:microsoft:windows:-:::::::*

History

24 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) IBM Langflow OSS 1.0.0 hasta 1.10.0 podría permitir a un atacante remoto obtener acceso no autorizado debido a una autenticación incorrecta en el endpoint /api/v1/login/auto_login. El endpoint emite tokens bearer de superusuario de larga duración sin requerir autenticación cuando la configuración AUTO_LOGIN está habilitada (habilitada por defecto), lo que puede permitir a un atacante de red no autenticado obtener acceso administrativo completo. Además, la configuración permisiva de intercambio de recursos de origen cruzado (CORS) puede permitir que los tokens sean expuestos a orígenes no deseados, aumentando el riesgo de acceso no autorizado.

Information

Published : 2026-07-17 19:17

Updated : 2026-10-24 20:10

NVD link : CVE-2026-9103

Mitre link : CVE-2026-9103

CVE.ORG link : CVE-2026-9103

JSON object : View

Products Affected

linux

linux_kernel

langflow

langflow

microsoft

windows

apple

macos

CWE

CWE-306

Missing Authentication for Critical Function

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