CVE-2026-9130

Published Aug 5, 2026

Last updated 17 days ago

Overview

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.
Source
psirt@us.ibm.com
NVD status
Modified
Products
langflow

Risk scores

CVSS 3.1

Type
Secondary
Base score
7.1
Impact score
4.2
Exploitability score
2.8
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:N
Severity
HIGH

Weaknesses

nvd@nist.gov
NVD-CWE-noinfo
134c704f-9b21-4f2e-91b3-4a467353bcc0
CWE-639

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.