IBM Langflow 1.0-1.9.3 Auth Bypass & Improper Python Exec Isolation
CVE-2026-10561 Published on June 22, 2026
Unauthenticated Remote Code Execution in Langflow OSS PythonREPLComponent via Builtins Injection
IBM Langflow OSS 1.0.0 through 1.9.3 has an vulnerability due to an improper isolation of Python execution combined with an authentication bypass that allows an unauthenticated attacker to execute arbitrary code on the host system, resulting in complete compromise
Vulnerability Analysis
CVE-2026-10561 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 be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Code Injection Vulnerability?
The software constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CVE-2026-10561 has been classified to as a Code Injection vulnerability or weakness.
Products Associated with CVE-2026-10561
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Affected Versions
IBM Langflow OSS:- Version 1.0.0, <= 1.9.3 is affected.