CVE-2025-71338

Flowise through 2.2.7 fails to sanitize path segments in the document-store loader endpoint, allowing unauthenticated attackers to write files outside the storage directory. Attackers can use parent-directory sequences to escape the storage directory and overwrite application files loaded at boot for remote code execution.

What this means for your business

It affects Flowiseai Flowise. It matters if your company, or a supplier that handles your data, runs it.
Code showing how to exploit it has been published, but real attacks have not been confirmed.
An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
FIRST's prediction model gives it a 0.9% chance of attack attempts being seen in the next 30 days, ranking above 59% of all known flaws.

What to do

1Check whether your company or your suppliers run Flowiseai Flowise, and which version. The affected versions are listed further down this page.
2If you do, apply the vendor's fix. A patch or vendor advisory has been published.

Not sure if your company is exposed?

Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.

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Scoring

CVSS: 10.0 (v3.1)
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
CVSS v4: 10.0
Weakness: CWE-73
Assigned by: disclosure@vulncheck.com

Dates

Published: 2026-06-25
Last modified: 2026-09-17
Sources: NVD

Affected products

Flowiseai Flowise- 3.1.3

As listed in the NVD configuration data. Not a statement about your estate.