Langflow < 1.7.1 Monitor API Authentication Bypass

critical Web App Scanning Plugin ID 115175

Synopsis

Langflow < 1.7.1 Monitor API Authentication Bypass

Description

Langlow versions before 1.7.1 lack of authentication on multiple API monitor endpoints, allowing unauthenticated access to sensitive conversation data, transaction histories, and destructive operations such as message deletion. This detection is included in the AI and LLM category.

Solution

Upgrade to Langflow version 1.7.1 or later.

See Also

https://github.com/advisories/GHSA-c5cp-vx83-jhqx

Plugin Details

Severity: Critical

ID: 115175

Type: remote

Published: 3/27/2026

Updated: 3/27/2026

Scan Template: basic, full, pci, scan

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 9.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:N

CVSS Score Source: CVE-2026-21445

CVSS v3

Risk Factor: Critical

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS Score Source: CVE-2026-21445

CVSS v4

Risk Factor: Critical

Base Score: 9.3

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

CVSS Score Source: CVE-2026-21445

Vulnerability Information

CPE: cpe:2.3:a:langflow:langflow:*:*:*:*:*:*:*:*

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 1/1/2026

Reference Information

CVE: CVE-2026-21445