CVE-2025-59434 | BDVDB-2026-295183 Detail

FlowiseAIFlowise

Description#

Flowise is a drag & drop user interface to build a customized large language model flow. Prior to August 2025 Cloud-Hosted Flowise, an authenticated vulnerability in Flowise Cloud allows any user on the free tier to access sensitive environment variables from other tenants via the Custom JavaScript Function node. This includes secrets such as OpenAI API keys, AWS credentials, Supabase tokens, and Google Cloud secrets — resulting in a full cross-tenant data exposure. This issue has been patched in the August 2025 Cloud-Hosted Flowise.

Impact#

Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact none. Attack vector: network.

Weaknesses#

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
CWE-284 Improper Access Control

References#

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-435c-mg9p-fv22

Exploit#

No public exploit known

History#

Version 12025-09-22Record published in the CVE List.

Published

Published: 2025-09-22
Last modified: 2025-09-22

Vendor information

Vendor: FlowiseAI
Product: Flowise

All FlowiseAI vulnerabilities

Score

9.6 Critical

EPSS

4.3%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 91.4.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Information Disclosure

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
< cloud-hosted (as of Aug 2025)
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

9.6 Critical

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Changed
Confidentiality	High
Integrity	High
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).