CVE-2024-36421 GHSL-2023-234: Flowise Cors Misconfiguration in packages/server/src/index.ts
Attackers can exploit CORS misconfiguration to steal user information and read arbitrary server files via chained path injection.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2024-36421?
CVE-2024-36421 is a high-severity vulnerability in Flowiseai Flowise, published on 1 Jul 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Flowise is a drag & drop user interface to build a customized large language model flow. In version 1.4.3 of Flowise, A CORS misconfiguration sets the Access-Control-Allow-Origin header to all, allowing arbitrary origins to connect to the website. In the default configuration (unauthenticated), arbitrary origins may be able to make requests to Flowise, stealing information from the user. This CORS misconfiguration may be chained with the path injection to allow an attacker attackers without access to Flowise to read arbitrary files from the Flowise server. As of time of publication, no known patches are available.
Weakness: CWE-346
Which versions are affected by CVE-2024-36421?
2 open source packages ship an affected version, including flowise. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
flowise npm | All versions to 1.4.3 | None |
flowise npm | All versions to 1.4.3 | None |
Products include Flowiseai Flowise.
How do I fix CVE-2024-36421?
No fix has been published for CVE-2024-36421 yet. Limit exposure of the affected software until one is available.
Is CVE-2024-36421 being exploited?
There is no known exploitation of CVE-2024-36421 in the wild and no public exploit code.
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-66f2-xxgm-f6xp.