{"id":"CVE-2018-11766","aliases":["EUVD-2018-0821","GHSA-rqj9-cq6j-958r"],"status":"published","title":"Arbitrary Command Execution in Hadoop","description":"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.","severity":{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.03244,"percentile":0.88389,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2018-11-27T14:00:00Z","modified":"2026-10-24T10:30:40Z","fixes":[{"ecosystem":"Maven","package":"org.apache.hadoop:hadoop-main","fixed_in":["2.7.7"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-main","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.4"},{"last_affected":"2.7.6"},{"fixed":"2.7.7"}]}]},{"source":"osv","ecosystem":"Maven","package":"org.apache.hadoop:hadoop-main","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"2.7.4"},{"fixed":"2.7.7"}]}],"versions":["2.7.4","2.7.5","2.7.6"]}],"products":[{"vendor":"apache","product":"hadoop"},{"vendor":"apache software foundation","product":"apache hadoop"}],"references":[{"url":"http://www.securityfocus.com/bid/106035","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory","web"]},{"url":"https://lists.apache.org/thread.html/ff37bbbe09d5f03090e2dd2c3dea95de16ef4249e731f19b8959ce4c%40%3Cgeneral.hadoop.apache.org%3E","tags":["x_refsource_MISC","x_transferred","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-11766","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rqj9-cq6j-958r","tags":["advisory"]},{"url":"https://lists.apache.org/thread.html/ff37bbbe09d5f03090e2dd2c3dea95de16ef4249e731f19b8959ce4c@%3Cgeneral.hadoop.apache.org%3E","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2018-11766","description":"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.","status":"published","published":"2018-11-27T14:00:00Z","modified":"2024-08-05T08:17:09.256Z","updated_at":"2026-11-02T14:35:09.570381Z"}],"euvd":[{"id":"EUVD-2018-0821","description":"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.","status":"published","published":"2018-11-27T14:00:00Z","modified":"2024-08-05T08:17:09Z","updated_at":"2026-11-03T02:39:54.565302Z"}],"ghsa":[{"id":"GHSA-rqj9-cq6j-958r","title":"Arbitrary Command Execution in Hadoop","description":"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.","status":"published","published":"2018-12-21T17:50:26Z","modified":"2023-01-09T05:03:46Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T14:36:06.317379Z"}],"nvd":[{"id":"CVE-2018-11766","description":"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.","status":"published","published":"2018-11-27T14:29:00.26Z","modified":"2026-06-17T01:36:32.797Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":9,"vector":"AV:N/AC:L/Au:S/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:04:48.987926Z"}],"osv":[{"id":"CVE-2018-11766","description":"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.","status":"published","published":"2018-11-27T14:29:00.26Z","modified":"2026-10-24T10:30:40.959614272Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:07.934182Z"},{"id":"GHSA-rqj9-cq6j-958r","title":"Arbitrary Command Execution in Hadoop","description":"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.","status":"published","published":"2018-12-21T17:50:26Z","modified":"2024-12-02T05:44:05.029076Z","cvss":[{"version":"3.0","score":8.8,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:46:56.281047Z"}]}}