Security advisory

{
  "id": "0419049cd2a499699cc5dbf9783be5589a5da39cdeb8d5df23d731603626513b",
  "url": "https://osv.dev/vulnerability/CVE-2018-11766",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2018-11766",
    "summary": "In Apache Hadoop 2.7.4 to 2.7.6, the security fix for CVE-2016-6811 is incomplete. A user who can escalate to yarn user can possibly run arbitrary commands as root user.",
    "evidence": "osv:CVE-2018-11766",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2018-11766",
      "aliases": [
        "CVE-2018-11766",
        "GHSA-rqj9-cq6j-958r"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apache/hadoop",
              "type": "GIT",
              "events": [
                {
                  "introduced": "cd915e1e8d9d0131462a0b7301586c175728a282"
                },
                {
                  "last_affected": "085099c66cf28be31604560c376fa282e69282b8"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.7.4"
                      },
                      {
                        "last_affected": "2.7.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-11766.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:40.959614272Z",
      "provider": "osv",
      "references": [
        "https://lists.apache.org/thread.html/ff37bbbe09d5f03090e2dd2c3dea95de16ef4249e731f19b8959ce4c%40%3Cgeneral.hadoop.apache.org%3E"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2018-11766",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 435057,
  "published_at": "2018-11-27T14:29:00.26+00:00"
}