Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.0.dev45, multiple critical API endpoints in Langflow are missing authentication controls. The issue allows any unauthenticated user to access sensitive user conversation data, transaction histories, and perform destructive operations including message deletion. This affects endpoints handling personal data and system operations that should require proper authorization. Version 1.7.0.dev45 contains a patch.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-c5cp-vx83-jhqx Langflow Missing Authentication on Critical API Endpoints
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Mon, 05 Jan 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Mon, 05 Jan 2026 10:45:00 +0000

Type Values Removed Values Added
First Time appeared Langflow
Langflow langflow
Vendors & Products Langflow
Langflow langflow

Fri, 02 Jan 2026 19:30:00 +0000

Type Values Removed Values Added
Description Langflow is a tool for building and deploying AI-powered agents and workflows. Prior to version 1.7.0.dev45, multiple critical API endpoints in Langflow are missing authentication controls. The issue allows any unauthenticated user to access sensitive user conversation data, transaction histories, and perform destructive operations including message deletion. This affects endpoints handling personal data and system operations that should require proper authorization. Version 1.7.0.dev45 contains a patch.
Title Langflow Missing Authentication on Critical API Endpoints
Weaknesses CWE-306
References
Metrics cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-01-06T04:55:17.694Z

Reserved: 2025-12-29T03:00:29.277Z

Link: CVE-2026-21445

cve-icon Vulnrichment

Updated: 2026-01-05T16:07:50.246Z

cve-icon NVD

Status : Received

Published: 2026-01-02T20:16:17.880

Modified: 2026-01-02T20:16:17.880

Link: CVE-2026-21445

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-01-05T10:13:48Z

Weaknesses