CVE-2026-31829 Flowise affected by Server-Side Request Forgery (SSRF) in HTTP Node Leading to Internal Network Access
Attackers can force the Flowise server to access internal network resources via user-controlled URLs in HTTP nodes, exposing private data.
- 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-2026-31829?
CVE-2026-31829 is a high-severity server-side request forgery vulnerability in Flowiseai Flowise, published on 10 Mar 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 3.0.13, Flowise exposes an HTTP Node in AgentFlow and Chatflow that performs server-side HTTP requests using user-controlled URLs. By default, there are no restrictions on target hosts, including private/internal IP ranges (RFC 1918), localhost, or cloud metadata endpoints. This enables Server-Side Request Forgery (SSRF), allowing any user interacting with a publicly exposed chatflow to force the Flowise server to make requests to internal network resources that are inaccessible from the public internet. This vulnerability is fixed in 3.0.13.
Weakness: CWE-918
Which versions are affected by CVE-2026-31829?
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 | 3.0.13 |
flowise npm | All versions | 3.0.13 |
flowise-components npm | All versions | 3.0.13 |
flowise-components npm | All versions | 3.0.13 |
Products include Flowiseai Flowise.
How do I fix CVE-2026-31829?
Upgrade flowise to 3.0.13 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-31829 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-31829 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-fvcw-9w9r-pxc7.