TI-2026-40635 Aliases CVE-2026-56270 GHSA-6pcv-j4jx-m4vx

Flowise - Unauthenticated OAuth Secrets Disclosure via /api/v1/loginmethod Endpoint

HIGH 77CWE-306Published 2026-06-24 · Updated 2026-06-24

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Security bypass, Information disclosure
Confidentiality · integrity · availability: High · None · None
Fix status: Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-306 and CWE-312.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.02048 81st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix Fixed Flowise (Flowise): 3.1.0flowise (npm): 3.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
FlowiseAI	Flowise	before 3.1.0	3.1.0	Patch available	CNA
—	flowise (npm)	before 3.1.0	3.1.0	Patch available	GHSA-6pcv-j4jx-m4vx

Flowise VendorFlowiseAI Affected before 3.1.0 Fixed in 3.1.0 Patch available CNA
flowise (npm) Vendor— Affected before 3.1.0 Fixed in 3.1.0 Patch available GHSA-6pcv-j4jx-m4vx

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:flowiseai:flowise::::::::	before 3.1.0	Vulnerable	FlowiseAI

cpe:2.3:a:flowiseai:flowise:*:*:*:*:*:*:*:* Versions before 3.1.0 Vulnerable ·FlowiseAI

Remediation

Fix · CNA Flowise (Flowise) Fixed in 3.1.0
Fix · GHSA-6pcv-j4jx-m4vx flowise (npm) Fixed in 3.1.0 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-06-24
Flowise 3.1.0
2 records Highest priority Priority HIGH 1 HIGH, 1 LOW
Other records, highest priority first
- TI-2026-40634 Flowise - Weak Default Token Hash Secret in JWT Token EncryptionPriority LOW 19
Show all 2 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-56270
2026-10-03 Alias added: GHSA-6pcv-j4jx-m4vx

References

Exploit 1

GitHub Security Advisory (GHSA-6pcv-j4jx-m4vx)

Other 1

https://github.com/FlowiseAI/Flowise

TI-2025-37059 Flowise has Remote Code Execution vulnerability CVSS 3.1CRITICAL 10.0
TI-2025-36193 Flowise Cloud and Local Deployments have Unauthenticated Password Reset Token Disclosure that Leads to Account Takeover CVSS 3.1CRITICAL 9.8
TI-2025-08190 Unsupervised OS command execution leads to remote code execution by unauthenticated network attackers CVSS 3.1CRITICAL 9.8
TI-2026-51595 Flowise before 3.1.3 Sandbox Escape via Puppeteer CVSS 4.0CRITICAL 9.4
TI-2026-49250 Flowise: CSV Agent Prompt Injection Remote Code Execution Vulnerability CVSS 4.0CRITICAL 9.5
TI-2025-43459 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API CVSS 4.0CRITICAL 10.0

See all 127 →

Sources

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