Dashboard / CVE-2026-59206

CVE-2026-59206

HIGH
MEDIUM Priority: 0.05 BB Relevance: 64/100
Published: 2026-07-09 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

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

Description

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated requests to be treated as a privileged user and exposing user and project listing endpoints. This issue is fixed in versions 1.123.61, 2.27.4, and 2.28.1.

Weakness Classification (1)

Affected Software (3)

VendorProductVersion
n8n n8n < 1.123.61
n8n n8n 2.0.0 – 2.27.4
n8n n8n 2.28.0

References & Advisories (3)

Bug Bounty Relevance

64 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

7.1 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/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

0.66%
Raw Score 0.006600
Percentile 51.5%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00660
2026-10-28
0.00660

Intelligence Sources

nvd ref →

External Links