{"id":"CVE-2026-110844","aliases":["EUVD-2026-101727","GHSA-r6g9-5cpp-ppwr","GHSA-v42g-p7pc-xq95"],"status":"published","title":"n8n before 1.123.83 Credential Authorization Bypass via Nested Inline Sub-Workflows","description":"n8n before 1.123.83 contains an authorization bypass vulnerability that allows shared-workflow editors to use credentials they cannot access by embedding them in nested or tool inline sub-workflows. Attackers can save workflows with Workflow Tool or Workflow Retriever inline definitions referencing restricted credentials, which execute using the workflow owner's credential values.","severity":{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00282,"percentile":0.2091,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2026-10-14T22:52:19Z","modified":"2026-11-02T02:46:19Z","products":[{"vendor":"n8n-io","product":"n8n"}],"references":[{"url":"https://github.com/n8n-io/n8n/security/advisories/GHSA-r6g9-5cpp-ppwr","tags":["vendor-advisory","advisory"]},{"url":"https://www.vulncheck.com/advisories/n8n-before-1.123.83-credential-authorization-bypass-via-nested-inline-sub-workflows","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110844","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-v42g-p7pc-xq95"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110844.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-110844","title":"n8n before 1.123.83 Credential Authorization Bypass via Nested Inline Sub-Workflows","description":"n8n before 1.123.83 contains an authorization bypass vulnerability that allows shared-workflow editors to use credentials they cannot access by embedding them in nested or tool inline sub-workflows. Attackers can save workflows with Workflow Tool or Workflow Retriever inline definitions referencing restricted credentials, which execute using the workflow owner's credential values.","status":"published","published":"2026-10-14T22:52:19.623Z","modified":"2026-10-15T15:42:13.075Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T13:34:26.24368Z"}],"euvd":[{"id":"EUVD-2026-101727","description":"n8n before 1.123.83 contains an authorization bypass vulnerability that allows shared-workflow editors to use credentials they cannot access by embedding them in nested or tool inline sub-workflows. Attackers can save workflows with Workflow Tool or Workflow Retriever inline definitions referencing restricted credentials, which execute using the workflow owner's credential values.","status":"published","published":"2026-10-14T22:52:19Z","modified":"2026-10-15T15:42:13Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N","level":"high"}],"updated_at":"2026-11-02T17:00:13.422137Z"}],"ghsa":[{"id":"GHSA-v42g-p7pc-xq95","title":"n8n before 1.123.83 contains an authorization bypass vulnerability that allows shared-workflow...","description":"n8n before 1.123.83 contains an authorization bypass vulnerability that allows shared-workflow editors to use credentials they cannot access by embedding them in nested or tool inline sub-workflows. Attackers can save workflows with Workflow Tool or Workflow Retriever inline definitions referencing restricted credentials, which execute using the workflow owner's credential values.","status":"published","published":"2026-10-15T00:31:17Z","modified":"2026-10-15T00:31:21Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:13:29.914076Z"}],"nvd":[{"id":"CVE-2026-110844","description":"n8n before 1.123.83 contains an authorization bypass vulnerability that allows shared-workflow editors to use credentials they cannot access by embedding them in nested or tool inline sub-workflows. Attackers can save workflows with Workflow Tool or Workflow Retriever inline definitions referencing restricted credentials, which execute using the workflow owner's credential values.","status":"published","published":"2026-10-14T23:17:24.94Z","modified":"2026-10-15T16:17:47.43Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:59.328869Z"}],"osv":[{"id":"CVE-2026-110844","title":"n8n before 1.123.83 Credential Authorization Bypass via Nested Inline Sub-Workflows","description":"n8n before 1.123.83 contains an authorization bypass vulnerability that allows shared-workflow editors to use credentials they cannot access by embedding them in nested or tool inline sub-workflows. Attackers can save workflows with Workflow Tool or Workflow Retriever inline definitions referencing restricted credentials, which execute using the workflow owner's credential values.","status":"published","published":"2026-10-14T22:52:19.623Z","modified":"2026-11-02T02:46:19.113243289Z","cvss":[{"version":"4.0","score":7.2,"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:L/VA:N/SC:H/SI:H/SA:N","level":"high"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:44:55.61515Z"}]}}