CVE-2025-71338 | Flowise contains a path traversal vulnerability in the /api/… | CVSS 10.0 CRITICAL

Description

Flowise contains a path traversal vulnerability in the /api/v1/document-store/loader/process endpoint that allows unauthenticated attackers to write arbitrary files to the filesystem. Attackers can exploit unsanitized fileName parameters with ../ sequences to overwrite critical files like package.json and achieve remote code execution when the application restarts.

Metadata

CVE ID: CVE-2025-71338
State: PUBLISHED
Assigner: VulnCheck
Reserved: 2026-06-20 01:48 UTC
Published: 2026-06-25 21:41 UTC
Last updated: 2026-06-25 21:41 UTC
Primary CWE: CWE-73
External Control of File Name or Path
Vendor / Product: Flowise / Flowise
Sources: cve.org · NVD

Severity & Metrics

10.0 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products (1)

Vendor	Product	Platform	Versions
Flowise	Flowise	—	—

Weakness (CWE)

CWE	Source	Description
CWE-73	cna	External Control of File Name or Path

CVSS scores (2)

Score	Severity	Version	Source	Vector
10.0	CRITICAL	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
10.0	CRITICAL	3.1	cna	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

References (2)

GitHub Security Advisory (GHSA-8vvx-qvq9-5948) https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-8vvx-qvq9-5948
VulnCheck Advisory: Flowise - Arbitrary File Write to Remote Code Execution via document-store API https://www.vulncheck.com/advisories/flowise-arbitrary-file-write-to-remote-code-execution-via-document-store-api