CVE-2026-56778 n8n - Authorization Bypass in Public API Execution Retry Endpoint

n8n before 2.25.7 and 2.26.x before 2.26.2 contains an authorization bypass in the Public API execution retry endpoint, which authorizes access using the workflow:read scope instead of workflow:execute. An authenticated user with read-only access to a shared workflow can use the Public API to ret...

GHSA-H3JJ-5F3V-3685 n8n: Public API Execution Retry Authorization Bypass

Impact The Public API endpoint for retrying executions authorized access using workflow:read rather than workflow:execute. An authenticated user with read-only access to a shared workflow could use the Public API to retry executions of that workflow, bypassing the intended permission boundary...