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npm/n8n CVE-2026-42235: high 8.2, EPSS 0.51%

n8n Vulnerable to XSS via MCP OAuth client

Action: Upgrade n8n to 1.123.32 or later.

npm i n8n@1.123.32
npm i n8n@2.18.1
npm i n8n@2.17.4

Affected

introducedfixedlast affected
01.123.32-
2.18.02.18.1-
2.17.02.17.4-

Fixed versions

1.123.322.18.12.17.4

Sources

CVE-2026-42235 · published · modified · JSON