Missing Authentication for Critical Function Affecting langflow package, versions [,1.3.0)


Severity

Recommended
0.0
critical
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
80.22% (100th percentile)

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  • Snyk IDSNYK-PYTHON-LANGFLOW-9668946
  • published7 Apr 2025
  • disclosed7 Apr 2025
  • creditUnknown

Introduced: 7 Apr 2025

NewCVE-2025-3248  (opens in a new tab)
CWE-306  (opens in a new tab)

How to fix?

Upgrade langflow to version 1.3.0 or higher.

Overview

langflow is an A Python package with a built-in web application

Affected versions of this package are vulnerable to Missing Authentication for Critical Function at the /api/v1/validate/code endpoint, which allows an attacker to execute arbitrary code by sending malicious HTTP requests.

CVSS Base Scores

version 4.0
version 3.1