AI security incident: CVE-2026-27966 (NVD)
Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.8.0, the CSV Agent node in Langflow hardcodes allow dangerous code=True, which automatically exposes LangChain’s Python REPL tool (python repl ast).
Why This Is AI-Related
This page is treated as AI-specific because the source material references langchain, which places the issue inside an AI workflow, model, assistant, or supporting dependency rather than a generic software bulletin.
- langchain
Affected Workflow
Review the AI product, dependency, and integration points mentioned in the source advisory before broadening remediation.
Likely Attack Path
The advisory indicates a security path that can affect AI applications, assistants, models, or connected automation workflows if the component is deployed.
Impact
The advisory has meaningful security implications for an AI-related product, dependency, or workflow and should be triaged against deployed usage. Severity HIGH. Classification confidence 75%. Source channel NVD.
Detection And Triage Signals
- New security events tied to the affected component or advisory identifier
- Changes in AI workflow behavior, access logs, or plugin execution after the advisory window
- Evidence that the vulnerable version is active in environments that process sensitive data
Recommended Response
- Confirm whether affected products, models, or integrations are used in your environment.
- Apply vendor fixes or mitigations and restrict risky permissions until verified.
- Monitor logs for related indicators and document containment for audit evidence.
Compliance And Business Impact
Even when exploit details are still emerging, delayed triage can widen operational and compliance exposure around AI systems.
Sources
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