CVE-2025-71334 Flowise - Arbitrary File Access via Missing Chat Flow ID Validation
Unauthenticated attackers can read or write arbitrary files via path traversal in Flowise, potentially leading to remote code execution.
- 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-2025-71334?
CVE-2025-71334 is a critical path traversal vulnerability in Flowiseai Flowise, published on 25 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Flowise before 3.0.6 contains an arbitrary file access vulnerability due to missing validation that the chatflowId and chatId parameters are UUIDs or numbers in file handling operations. By supplying a path-traversal value (e.g., '../../../../../tmp') as the chatflow id, an unauthenticated attacker can use the /api/v1/chatflows endpoint (via addBase64FilesToStorage) to write arbitrary files, and the /api/v1/get-upload-file and /api/v1/openai-assistants-file/download endpoints (via streamStorageFile) to read arbitrary files. Arbitrary file write may lead to remote code execution.
Weakness: CWE-73
Which versions are affected by CVE-2025-71334?
2 open source packages ship an affected version, including flowise. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
flowise npm | From 2.2.8 | 3.0.6 |
flowise npm | From 2.2.8 | 3.0.6 |
Products include Flowiseai Flowise.
How do I fix CVE-2025-71334?
Upgrade flowise to 3.0.6 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2025-71334 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-71334 exists.
Public exploit code: 1 Nuclei template.
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-q67q-549q-p849, GHSA-w5r9-j49j-2m55.