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Security Bulletin: Monitor API allows cross-user read of transaction logs and deletion of build data via flow_id

🗓️ 27 Apr 2026 17:55:32Reported by IBMType 
ibm
 ibm
🔗 www.ibm.com👁 7 Views

Langflow OSS Monitor API allows unauthorized access via flow identifier, enabling authenticated users to read others logs and delete data; upgrade to 1.9.0.

Related
Detection
Vulners
Node
ibmlangflow_ossMatch1.0.0
OR
ibmlangflow_ossMatch1.8.4

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27 Apr 2026 17:55Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.16.5 - 8.1
EPSS0.00052
SSVC
7