CVE-2026-42231 | n8n-io n8n up to 1.123.31/2.17.3/2.18.0 XML prototype pollution (GHSA-q5f4-99jv-pgg5 / EUVD-2026-27102)
A vulnerability was found in n8n-io n8n up to 1.123.31/2.17.3/2.18.0. It has been rated as critical. Affected is an unknown function of the component XML Handler. This manipulation causes improperly controlled modification of object prototype attributes.
This vulnerability is tracked as CVE-2026-42231. The attack is possible to be carried out remotely. No exploit exists.
Upgrading the affected component is advised.