Security advisory

{
  "id": "b036d421898d88f98eb139e57b8563d801c307bc5954cd15a10c59ea86722756",
  "url": "https://osv.dev/vulnerability/CVE-2020-13929",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-13929",
    "summary": "Authentication bypass vulnerability in Apache Zeppelin allows an attacker to bypass Zeppelin authentication mechanism to act as another user. This issue affects Apache Zeppelin Apache Zeppelin version 0.9.0 and prior versions.",
    "evidence": "osv:CVE-2020-13929",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-13929",
      "aliases": [
        "CVE-2020-13929",
        "GHSA-87p2-cvhq-q4mv"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/zeppelin",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "ecc4455b1809c01cd17b542273be37fb1ebad8d4"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:zeppelin:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.9.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.9.0-docker",
            "v0.9.0-preview1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-13929.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:25.970337215Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cannounce.apache.org%3E",
        "https://lists.apache.org/thread.html/r99529e175a7c1c9a26bd41a02802c8af7aa97319fe561874627eb999%40%3Cusers.zeppelin.apache.org%3E",
        "https://lists.apache.org/thread.html/r768800925d6407a6a87ccae0ec98776b7bda50c0e3ed3d0130dad028%40%3Cusers.zeppelin.apache.org%3E",
        "https://security.gentoo.org/glsa/202311-04"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-13929",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431504,
  "published_at": "2021-09-02T17:15:07.86+00:00"
}