Cyber Resilience

CVE-2026-44789

Critical

Published: 23 June 2026

Published
23 June 2026
Modified
24 June 2026
KEV Added
—
Patch
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CVSS Score v4 9.4 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/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 Score 0.0063 45.8th percentile
Risk Priority 70 floored blend · peak EPSS

Summary

CVE-2026-44789 is a critical-severity Prototype Pollution (CWE-1321) vulnerability in N8N N8N. Its CVSS base score is 9.4 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 45.8th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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…

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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.

CWE(s)
CWE-1321

Related Threats

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
Why these techniques?

Vulnerability in public-facing workflow app directly enables exploitation for RCE via prototype pollution in HTTP node.

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

Affected Assets

n8n
n8n
≤ 1.123.43 · 2.0.0 — 2.20.7 · 2.21.0 — 2.22.1

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References