| Component | Langflow |
| Severity | high (CVSS 7.1) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L |
| Published (NVD) | 2025-12-19 |
| Last modified | 2026-10-13 |
| Affected versions | langflow < 1.7.0 |
| Fixed in | 1.7.0 |
| Weakness | CWE-73CWE-610 |
| CISA KEV | not listed |
NVD 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.
What to do
- Upgrade Langflow to
1.7.0or later. - Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
Read more
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