CVE-2026-56775 n8n - Incorrect OAuth Scope Validation in Evaluation Test Runs Endpoints

n8n before 1.123.55, 2.25.7, and 2.26.2 contains an authorization vulnerability in three mutating evaluation test-run endpoints that authorize state-changing actions using the workflow:read scope instead of the action-appropriate workflow:execute scope. On instances using Advanced Permissions...

CVE-2026-56775

CVE-2026-56775 affects n8n prior to 1.123.55, 2.25.7, and 2.26.2. The issue is an authorization vulnerability in three mutating evaluation test-run endpoints that grant state-changing actions under the workflow:read scope instead of the action-appropriate workflow:execute scope. On systems using ...