CVE-2026-73601: flowise before 3.1.3 (exclusive); +1 more affected products

CVE-2026-73601. CVSS 3.1 base score 8.8 (HIGH, NVD). EPSS 0.01099 (percentile 0.65378), scored 22-Oct-2026.

Affected technology

flowise · before 3.1.3 (exclusive)
flowiseai

Flowise · 0 to before 3.1.3
FlowiseAI

Description’s affected range: versions before 3.1.3

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · Low privileges required · No user interaction required

What an attacker can do

The source says flowise versions before 3.1.3 contain a remote code execution vulnerability in the Custom MCP node when CUSTOM_MCP_PROTOCOL is set to stdio, allowing authenticated users to execute arbitrary commands by manipulating environment variables and command arguments. Vendor/CNA’s CVSS 4.0 assessment (base score 9.0/10) rates confidentiality, integrity and availability impact as high.

Published 24-Oct-2026 01:43 UTC

CWE: CWE-95
CCR priority: 35.5 /100 (P4)
CVSS 3.1: 8.8 /10 · CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · NVD
EPSS: 0.01099 · percentile 0.65378 · 2026-10-22
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-24 01:40:49.068977+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2026-73601.html