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CVE-2026-9130

nvd nist
Published: Aug 5, 2026Modified: Aug 7, 2026

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7.1
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Exploitability: 2.8 / Impact: 4.2
Source: psirt@us.ibm.com (Secondary)

Description

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.

Affected (1)

Products: Langflow: Langflow
Langflow
1 product
Langflow
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Langflow
From 1.0.0 to 1.11.0

Related CWEs

CWE-639
Authorization Bypass Through User-Controlled Key
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

References (1)

Source: psirt@us.ibm.com
Vendor Advisory

Timeline

No history available yet.