CVE-2026-44789

n8n: HTTP Request Node Pagination Prototype Pollution to RCE

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.

Affected

n8n-io · n8n

CVSS v4.0 GITHUB

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

CVSS v4.0 GitHub

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

CVSS v3.1 NVD

9.9 CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

EPSS

0.53% chance of exploitation in the next 30 days, 44th percentile

Published

2026-06-23

Updated

2026-06-24

Proof-of-concept exploits (1)

• BiiTts/CVE-2026-44789-n8n-PrototypePollution-RCE4★ · 2026-06-30

Security advisories

• n8n-io/n8n/security/advisories/GHSA-c8xv-5998-g76h
• advisories/GHSA-c8xv-5998-g76h

References

• CVE Record
• NVD entry

Related

• CVE-2025-1974
• CVE-2025-49113
• CVE-2026-12940
• CVE-2026-46490
• CVE-2026-49230
• CVE-2026-49468