IBM Langflow OSS 1.01.10.2 Auth Bypass Enables Data Theft & Workflow Injection
CVE-2026-17627 Published on September 4, 2026
Langflow is affected by improper authorization due to missing access control on the voice-mode WebSocket endpoint
IBM Langflow OSS 1.0.0 through 1.10.2 could allow a remote authenticated attacker to obtain sensitive information and inject messages into workflow history due to improper authorization.
Vulnerability Analysis
CVE-2026-17627 can be exploited with network access, and requires small amount of user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality and integrity, and no impact on availability.
Weakness Type
What is an Insecure Direct Object Reference / IDOR Vulnerability?
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.
CVE-2026-17627 has been classified to as an Insecure Direct Object Reference / IDOR vulnerability or weakness.
Products Associated with CVE-2026-17627
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Affected Versions
IBM Langflow OSS:- Version 1.0.0, <= 1.10.2 is affected.