IBM Langflow OSS <1.12 - RCE via Graph Construction Code Injection
CVE-2026-81204 Published on September 10, 2026
Langflow is vulnerable to arbitrary code execution due to multiple incomplete code security controls and missing execution guards
IBM Langflow OSS 1.0.0 through 1.11.5 could allow a remote attacker to execute arbitrary code due to code injection during graph construction.
Vulnerability Analysis
CVE-2026-81204 is exploitable 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-2026-81204 has been classified to as a Code Injection vulnerability or weakness.
Products Associated with CVE-2026-81204
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Affected Versions
IBM Langflow OSS:- Version 1.0.0, <= 1.11.5 is affected.