Input validation error in Flowise - #VU131710
Published: May 18, 2026
Vulnerability identifier: #VU131710
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: N/A
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: FlowiseAI
Affected software:
Flowise
Flowise
Detailed vulnerability description
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to improper input validation in validateArgsForLocalFileAccess when validating node command arguments for local file access. A remote user can provide a crafted path beginning with // to execute arbitrary code.
Exploitation requires a Flowise account. The issue stems from an absolute-path check that fails to block paths beginning with a double slash.
Remediation
Install security update from vendor's website.