{"action":"Upgrade n8n to 2.27.4 or later.","affected":[{"fixed":"2.28.1","introduced":"2.28.0"},{"fixed":"2.27.4","introduced":"0"}],"component":"n8n","cve_ids":["CVE-2026-59254"],"ecosystem":"npm","epss":0.00364,"exploited":false,"fixed_versions":["2.28.1","2.27.4"],"ghsa_id":"GHSA-2434-3x6q-8r99","id":"tcs_01M5KERVY919QT1G46SZ60SV80","modified_at":"2026-07-22T22:31:07.314203874Z","published_at":"2026-07-22T22:23:29Z","references":["https://osv.dev/vulnerability/GHSA-2434-3x6q-8r99","https://github.com/n8n-io/n8n/security/advisories/GHSA-2434-3x6q-8r99","https://nvd.nist.gov/vuln/detail/CVE-2026-59254","https://github.com/n8n-io/n8n","https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4","https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1","https://www.vulncheck.com/advisories/n8n-external-secrets-disclosure-via-workflow-node-expressions"],"severity":{"label":"medium","score":6.3},"sources":[{"source":"osv","source_id":"GHSA-2434-3x6q-8r99","url":"https://osv.dev/vulnerability/GHSA-2434-3x6q-8r99"},{"source":"nvd","source_id":"CVE-2026-59254","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-59254"}],"summary":"n8n: External Secrets Accessible via Workflow Expressions Outside Credentials"}