CVE-2026-44789 | n8n is an open source workflow automation platform. Prior to… | CVSS 9.4 CRITICAL

Description

n8n is an open source workflow automation platform. Prior to 1.123.43, 2.22.1, and 2.20.7, an authenticated user with permission to create or modify workflows could achieve global prototype pollution via an unvalidated pagination parameter in the HTTP Request node. Combined with other techniques this could lead to RCE on the instance. This vulnerability is fixed in 1.123.43, 2.22.1, and 2.20.7.

Metadata

CVE ID: CVE-2026-44789
State: PUBLISHED
Assigner: GitHub_M
Reserved: 2026-05-07 19:20 UTC
Published: 2026-06-23 15:52 UTC
Last updated: 2026-06-23 15:52 UTC
Primary CWE: CWE-1321
CWE-1321: Improperly Controlled Modification of Object Proto…
Vendor / Product: n8n-io / n8n
Sources: cve.org · NVD

Severity & Metrics

9.4 CRITICAL CVSS 4.0

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

Affected products (1)

Vendor	Product	Platform	Versions
n8n-io	n8n	—	< 1.123.43, >= 2.0.0-rc.0, < 2.20.7, >= 2.21.0, < 2.21.1

Weakness (CWE)

CWE	Source	Description
CWE-1321	cna	CWE-1321: Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.4	CRITICAL	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References (1)

https://github.com/n8n-io/n8n/security/advisories/GHSA-c8xv-5998-g76h https://github.com/n8n-io/n8n/security/advisories/GHSA-c8xv-5998-g76h