Auth Bypass via IDOR in IBM Langflow OSS 1.0.0-1.9.1
CVE-2026-7787 Published on June 11, 2026
Unauthenticated Session History Access via Public Flow Execution
IBM Langflow OSS 1.0.0 through 1.9.1 could allow an authenticated user to read or modify sensitive information by bypassing authentication using insecure direct object references.
Vulnerability Analysis
CVE-2026-7787 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and 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-2026-7787 has been classified to as an Insecure Direct Object Reference / IDOR vulnerability or weakness.
Products Associated with CVE-2026-7787
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Affected Versions
IBM Langflow OSS:- Version 1.0.0, <= 1.9.1 is affected.