CVE-2026-43995 Flowise: SSRF Protection Bypass via Direct node-fetch / axios Usage (Patch Enforcement Failure)
Attackers can bypass SSRF protections in Flowise by exploiting tools that use raw HTTP clients, potentially accessing internal network resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-43995?
CVE-2026-43995 is a medium-severity server-side request forgery vulnerability in Flowiseai Flowise, published on 11 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-918
Which versions are affected by CVE-2026-43995?
4 open source packages ship an affected version, including flowise and flowise-components. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
flowise npm | All versions | 3.1.0 |
flowise npm | All versions | 3.1.0 |
flowise-components npm | All versions | 3.1.0 |
flowise-components npm | All versions | 3.1.0 |
Products include Flowiseai Flowise.
How do I fix CVE-2026-43995?
Upgrade flowise to 3.1.0 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-43995 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43995 exists.
Other vulnerabilities in Flowiseai Flowise
- CVE-2025-71338 Flowise through 2.2.7 - Arbitrary File Write to Remote Code Execution via document-store API
- CVE-2026-40933 Flowise: Authenticated RCE Via MCP Adapters
- CVE-2025-61913 Flowise is vulnerable to arbitrary file read, arbitrary file write
- CVE-2025-59528 Flowise has Remote Code Execution vulnerability
- CVE-2026-52098 Code injection in n/a
Sources
Also known as GHSA-qqvm-66q4-vf5c.