{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "1.11.0"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "d9ad3917df581f6af4f9564f29e62dbdcd77a0db"
            },
            {
              "fixed": "9045ea50196927eac7de647bb5b7009349236fb4"
            }
          ],
          "repo": "https://github.com/lfnovo/open-notebook",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-918"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90769.json"
  },
  "details": "Open Notebook before 1.11.0 fails to validate the URL parameter in POST /api/sources endpoint, allowing authenticated users to perform server-side requests to internal services. Attackers can supply arbitrary URLs to read cloud metadata, internal network services, and localhost-bound services through the application server's direct HTTP requests.",
  "id": "CVE-2026-90769",
  "modified": "2026-09-16T03:30:21.867872173Z",
  "published": "2026-09-13T10:45:40.937Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90769.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90769"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/open-notebook-before-1.11.0-server-side-request-forgery-via-link-source"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/lfnovo/open-notebook/issues/1284"
    },
    {
      "type": "FIX",
      "url": "https://github.com/lfnovo/open-notebook/commit/9045ea50196927eac7de647bb5b7009349236fb4"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/lfnovo/open-notebook"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/lfnovo/open-notebook/blob/8889087e317177d7b6e286342ab34e0c9c01d43e/api/routers/sources.py"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Open Notebook before 1.11.0 Server-Side Request Forgery via link-source"
}