{"id":"CVE-2026-59206","revision":"3a769e3e45f54c0fa096d34d861d5056","records":[{"revision":"3a769e3e45f54c0fa096d34d861d5056","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-59206","aliases":[],"title":"n8n: Prototype Pollution via Workflow Credentials Leads to Unauthenticated User and Project Enumeration","description":"n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated requests to be treated as a privileged user and exposing user and project listing endpoints. This issue is fixed in versions 1.123.61, 2.27.4, and 2.28.1.","state":0,"publishedAt":"2026-07-09T15:30:28.166+00:00","modifiedAt":"2026-07-09T18:38:07.061+00:00","affected":[{"ecosystem":"Vendor product","name":"n8n","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"n8n-io\",\n                    \"product\": \"n8n\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 2.28.0, < 2.28.1\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 2.0.0-rc.0, < 2.27.4\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"< 1.123.61\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:L/SI:L/SA:N","score":7.1,"severity":"HIGH"}],"references":["https://github.com/n8n-io/n8n/security/advisories/GHSA-75qm-gp28-rcq9","https://github.com/n8n-io/n8n/releases/tag/n8n%402.27.4","https://github.com/n8n-io/n8n/releases/tag/n8n%402.28.1"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-59206","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-59206","identifiers":["CVE-2026-59206"]},"retained":false,"historicalAffected":[]}],"coverage":[]}