Unpatched Langflow Flaw CVE-2026-5027 Exploited for Unauthenticated RCE

Summary

A high-severity vulnerability (CVE-2026-5027) in the open-source AI platform Langflow is being actively exploited. The flaw, a path traversal issue, allows unauthenticated remote code execution by enabling attackers to write files to arbitrary locations.

IFF Assessment

FOE

This vulnerability allows unauthenticated remote code execution, posing a direct threat to systems utilizing Langflow.

Severity

8.8 High

The CVSS score of 8.8 indicates a high severity, primarily due to the attack vector (network-accessible) and the impact (confidentiality, integrity, and availability are all high), allowing for unauthenticated remote code execution.

Defender Context

Defenders should be aware of this actively exploited vulnerability in Langflow, an AI development platform. Prompt patching or implementing mitigations is crucial to prevent unauthorized access and potential compromise of AI applications built with this tool.

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