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.
Scores
CVSS v3
7.1
EPSS
0.0002
EPSS Percentile
6.5%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-610
CWE-73
Status
published
Products (2)
langflow/langflow
< 1.7.0
pypi/langflow
0 - 1.7.1PyPI
Published
Dec 19, 2025
Tracked Since
Feb 18, 2026