HIGH 7.1

PYSEC-2025-125

Details

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.0, if an arbitrary path is specified in the request body's `fs_path`, the server serializes the Flow object into JSON and creates/overwrites a file at that path. There is no path restriction, normalization, or allowed directory enforcement, so absolute paths (e.g., /etc/poc.txt) are interpreted as is. Version 1.7.0 fixes the issue.

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Affected packages

PyPI / langflow

Introduced in: 0 Fixed in: 1.7.0

Fix pip install --upgrade 'langflow>=1.7.0'

References

https://github.com/langflow-ai/langflow/security/advisories/GHSA-f43r-cc68-gpx4 [EVIDENCE]