What’s Vulnerable › Vulnerabilities
CVE-2025-59434: Critical Multi-Tenant Variable Disclosure in Flowise Cloud via Custom JavaScript Function
- Severity: critical (CVSS 9.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 3.6% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2025-09-22 · updated 2026-10-11
- Weakness: CWE-200
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.
Affected products
- FlowiseAI Flowise: before cloud-hosted (as of Aug 2025)
References
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