/Vulnerability Library

Flowise <= 3.0.13 - Unauthenticated OAuth Configuration Disclosure

CVE-2026-56270
Verified

Description

Flowise before 3.1.0 contains a missing authentication vulnerability in the /api/v1/loginmethod endpoint, allowing unauthenticated remote attackers to retrieve an organization's complete SSO configuration including OAuth client secrets by providing an organizationId parameter.

Severity

High

CVSS Score

7.5

Exploit Probability

2%

Affected Product

flowise

Published Date

August 19, 2026

Template Author

0x_akoko, pdteam

CVE-2026-56270.yaml
7.5Score

CVSS Metrics

CVSS Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE ID:
cve-2026-56270
CWE ID:
cwe-306

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-6pcv-j4jx-m4vxhttps://nvd.nist.gov/vuln/detail/CVE-2026-56270

Remediation Steps

Upgrade to version 3.1.0 or later.