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CVE-2026-54309

1 advisory.

npm/n8n CVE-2026-54309: critical 10

n8n: MCP Browser HTTP Transport Exposes Unauthenticated Browser-Control Sessions

Action: Upgrade n8n to 2.25.7 or later.

npm i n8n@2.26.2
npm i n8n@2.25.7

Affected

introducedfixedlast affected
2.26.02.26.2-
02.25.7-

Fixed versions

2.26.22.25.7

Sources

CVE-2026-54309 · published · modified · JSON