#VU125542 Path traversal in Flowise
Published: April 9, 2026
Vulnerability identifier: #VU125542
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: N/A
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Flowise
Flowise
Software vendor:
FlowiseAI
FlowiseAI
Description
The vulnerability allows a remote attacker to read arbitrary files and cause a denial of service.
The vulnerability exists due to path traversal in the chatId parameter handling of the /api/v1/get-upload-file and /api/v1/openai-assistants-file/download endpoints when processing file download requests. A remote attacker can supply a crafted chatId value to read arbitrary files and cause a denial of service.
In the default configuration, exploitation can expose the local sqlite database and its contents. Knowledge of a valid chatflowId is required, and the advisory states that the /api/v1/vector/upsert/ endpoint may disclose one through a verbose error response.
Remediation
Install security update from vendor's website.