PYSEC-2026-224

At a glance

Published
Updated
CVE
CVE-2026-55450
Aliases
GHSA-x223-p2gf-v735
CVSS_V3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:H

Description

Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to 1.9.1, unauthenticated users can upload any amount of data to the server without any limitations. No need for any prior knowledge, only network access to Langflow. This can lead to space exhaustion on the server. In addition, in the response, the absolute path of the uploaded file is reported to the attacker, which is an information leak that can assist in chaining other primitives. This vulnerability is fixed in 1.9.1.

Affected packages

PackageVersions
PyPI · langflowintroduced 0, fixed 1.9.1

References

Sources

SourceLicence
OSV.devCC-BY 4.0 — PyPA Advisory Database