Description
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.
Affected products
langflow: langflow
References2
- github.com/langflow-ai/langflow/security/advisories/GHSA-f43r-c… ExploitVendor Advisory
- github.com/langflow-ai/langflow/security/advisories/GHSA-f43r-c… ExploitVendor Advisory
Metrics
- CVSS 3.1
-
7.1
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L - EPSS — exploit probability
- 6% percentile: 93 · as of 11 November 2026
- CWE
- CWE-73CWE-610
Could this be exploited in your environment?
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