Vulnerability · Published Jun 23, 2026 · Assigned by GitHub_M
CVE-2026-44789n8n: HTTP Request Node Pagination Prototype Pollution to RCE
Critical 9.4
In plain English
A critical-severity prototype pollution in n8n from n8n-io. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | n8n | 1.123.43 | GHSA-c8xv-5998-g76h |
| npm | n8n | 2.22.1 | GHSA-c8xv-5998-g76h |
| npm | n8n | 2.20.7 | GHSA-c8xv-5998-g76h |
Affected products (as reported)
Weakness: CWE-1321 · Vector: 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
- https://github.com/n8n-io/n8n/security/advisories/GHSA-c8xv-5998-g76h x_refsource_CONFIRM