CVE-2026-6542: IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flow_id to read transaction logs and vertex build data belonging to other users, and to…

PriorityP346high8.1CVSS 3.1

AVNACLPRLUINSUCHIHAN

EPSS

0.20%

10.1th percentile

IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flow_id to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow.

Affected

2 ranges

Vendor	Product	Version range	Fixed in
ibm	langflow_oss	1.0.0 – 1.8.4	—
langflow	langflow	>= 1.0.0 < 1.9.0	1.9.0

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