CVE-2026-43995
Critical
Description
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, multiple tool implementations directly import and invoke raw HTTP clients (node-fetch, axios) instead of using the secured wrapper. These tools include (1) OpenAPIToolkit/OpenAPIToolkit.ts, (2) WebScraperTool/WebScraperTool.ts, (3) MCP/core.ts, and (4) Arxiv/core.ts. This vulnerability is fixed in 3.1.0.
SeverityCritical
CVSS9.8
Exploit probability—
ProductFlowise
PublishedMay 11, 2026
First seenMay 11, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Update
- flowiseai flowise3.1.0 or later
- flowise3.1.0 or later
- flowise-components3.1.0 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| flowiseai flowise | v < 3.1.0 | 3.1.0 |
| flowisenpm | v < 3.1.0 | 3.1.0 |
| flowise-componentsnpm | v < 3.1.0 | 3.1.0 |
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