Dashboard / CVE-2026-58057

CVE-2026-58057

LOW
INFO Priority: 0.04 BB Relevance: 45/100
Published: 2026-06-28 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network No Interaction

CVSS Vector Breakdown

AV: Network
AC: High
PR: Low
UI: None
S: X
AT: Present
VC: Low
VI: Low
VA: Low

Description

Flowise before 3.1.3 validates Custom MCP stdio environment variables against a denylist using a case-sensitive comparison, so on Windows, where environment names are case-insensitive, supplying 'node_options' bypasses the NODE_OPTIONS denylist entry. An authenticated user who can configure a Custom MCP node can thereby inject NODE_OPTIONS --require and execute arbitrary code in the Flowise server context.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
flowiseai flowise < 3.1.3

References & Advisories (3)

Bug Bounty Relevance

45 / 100
✓ Network accessible
✓ No user interaction

CVSS Score

2.3 / 10.0 v4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

1.56%
Raw Score 0.015560
Percentile 75.1%
Date 2026-10-29

EPSS Trend

2026-10-29
0.01556
2026-10-28
0.01556

Intelligence Sources

nvd ref →

External Links