Security advisory

{
  "id": "074bc3103edcca26fecf96d4b6c75211277f1cdb7b7f26828f337cc74d4520dc",
  "url": "https://osv.dev/vulnerability/CVE-2026-33587",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-33587",
    "summary": "Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and subsequently OS commands) on the docker container via Server-Side Template Injection (SSTI) for user-created transformations.",
    "evidence": "osv:CVE-2026-33587",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2026-33587",
      "aliases": [
        "CVE-2026-33587",
        "GHSA-f35w-wx37-26q7"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/lfnovo/open-notebook",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1a35240e1513efd856ca125d7ef243bcb4b3f936"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:lfnovo:open-notebook:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.8.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.8.3",
            "v1.8.1",
            "v1.8.0",
            "v1.7.4",
            "v1.7.3",
            "v1.7.2",
            "v1.7.1",
            "v1.7.0",
            "v1.6.2",
            "v1.5.0",
            "v1.4.0",
            "v1.3.1",
            "v1.3.0",
            "v1.2.4",
            "v1.2.0",
            "v1.0.8",
            "v0.3.2",
            "v0.3.1",
            "v0.3.0",
            "v0.2.2",
            "v0.2.0",
            "v0.1.1",
            "v0.1.0",
            "v0.0.10",
            "v0.0.9",
            "v0.0.8",
            "v0.0.7",
            "v0.0.5",
            "v0.0.4",
            "v0.0.3",
            "v0.0.2",
            "v0.0.1-alpha"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33587.json"
          }
        }
      ],
      "modified": "2026-10-20T12:01:54.808160725Z",
      "provider": "osv",
      "references": [
        "https://github.com/lfnovo/open-notebook/security/advisories/GHSA-f35w-wx37-26q7"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2026-33587",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 387243,
  "published_at": "2026-05-07T11:16:00.887+00:00"
}