{
  "affected": [
    {
      "package": {
        "ecosystem": "npm",
        "name": "n8n"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.8.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-269",
      "CWE-284",
      "CWE-287"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-26T22:45:13Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "## Impact\nAn authenticated user signed in through Single Sign-On (SSO) could disable SSO enforcement for their own account through the n8n API. This allowed the user to create a local password and authenticate directly with email and password, completely bypassing the organization\u0027s SSO policy, centralized identity management, and any identity-provider-enforced multi-factor authentication.\n\n## Patches\nThe issue has been fixed in n8n version 2.8.0. Users should upgrade to this version or later to remediate the vulnerability.\n\n## Workarounds\nIf upgrading is not immediately possible, administrators should consider the following temporary mitigations:\n- Monitor audit logs for users who create local credentials after authenticating via SSO.\n- Restrict the n8n instance to fully trusted users only.\n\nThese workarounds do not fully remediate the risk and should only be used as short-term mitigation measures.",
  "id": "GHSA-vjf3-2gpj-233v",
  "modified": "2026-02-26T22:45:14Z",
  "published": "2026-02-26T22:45:13Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/n8n-io/n8n/security/advisories/GHSA-vjf3-2gpj-233v"
    },
    {
      "type": "WEB",
      "url": "https://github.com/n8n-io/n8n/commit/a70b2ea379086da3de103bb84811e88cadf29976"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/n8n-io/n8n"
    },
    {
      "type": "WEB",
      "url": "https://github.com/n8n-io/n8n/releases/tag/n8n@2.8.0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "n8n has an SSO Enforcement Bypass in its Self-Service Settings API"
}