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CVE-2025-59434

Critical Multi-Tenant Variable Disclosure in Flowise Cloud via Custom JavaScript Function

Published: Sep 22, 2025Updated: Sep 22, 2025 Sources: CVE List NVD BDUCWE-200
9.6CRITICAL
NVD MITRE
EPSS Score
3.1%
Top 13.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

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.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:CC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-200CWE-284

Affected Products

Flowise AI
aka flowise
Flowise
AI / ML / ai-agent-tooling
FlowiseAI
oss-projectaka flowise-components, flowise, embed
FlowiseOn-premWeb App
AI / ML / ai-agent-tooling

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
View detailed technique mapping

References

https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-435c-mg9p-fv22
github.com
https://github.com/FlowiseAI/Flowise/releases/tag/flowise%403.0.5
github.com
https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-435c-mg9p-fv22
github.com

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