CVE-2026-56270

High

Description

Flowise before 3.1.0 (versions 3.0.13 and earlier) contains a missing authentication vulnerability in the /api/v1/loginmethod endpoint that allows unauthenticated users to retrieve an organization's complete SSO configuration, including OAuth client secrets in cleartext, by providing an organizationId parameter. Remote attackers can send a GET request to harvest sensitive API credentials for Google, Microsoft/Azure, GitHub, and Auth0 integrations. This affects FlowiseAI Cloud and self-hosted instances where the endpoint is exposed.

SeverityHigh

CVSS7.5

Exploit probability—

ProductFlowise

PublishedJun 24, 2026

First seenJun 24, 2026

Weakness typeCWE-306Missing authentication for critical function

How to fix

Update

flowiseai flowise3.1.0 or later
flowise3.1.0 or later

Vendor advisories

github.com/FlowiseAI/Flowise/security/advisories/GHSA-6pcv-j4jx-m4vx

Affected products

Product	Affected versions	Fixed in
flowiseai flowise	v < 3.1.0	3.1.0
flowisenpm	v < 3.1.0	3.1.0

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