CVE-2026-54312

HIGH EPSS 21.1%

Published Jun 23, 20261w ago · Modified Jun 23, 20261w ago

7.2 CVSS 4.0

High

Published Jun 23, 2026 1w ago

Last Modified Jun 23, 2026 1w ago

Description

n8n is an open source workflow automation platform. Prior to 2.24.0, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via the Microsoft SQL node by supplying a crafted value as the table parameter. This pollutes Object.prototype process-wide for the lifetime of the n8n server process, causing application-wide validation failures and rendering the n8n instance completely non-functional until restarted. This vulnerability is fixed in 2.24.0.

CVSS Details

Base Score

7.2

Exploitability

—

Impact

—

Vector string

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:H/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

Attack Vector Network

Attack Complexity Low

Privileges Required Low

User Interaction None

Scope X

Threat Intelligence

EPSS Exploit Probability

21.1% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-1321

References 1

github.com https://github.com/n8n-io/n8n/security/advisories/GHSA-x6p3-m6h9-fx7r

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.