{"id":"CVE-2018-11764","details":"Web endpoint authentication check is broken in Apache Hadoop 3.0.0-alpha4, 3.0.0-beta1, and 3.0.0. Authenticated users may impersonate any user even if no proxy user is configured.","aliases":["GHSA-4fh8-pm7g-pmxq"],"modified":"2026-07-08T17:14:54.884416Z","published":"2020-10-21T19:15:13.543Z","references":[{"type":"ADVISORY","url":"https://lists.apache.org/thread.html/r790ad0a049cde713b93589ecfd4dd2766fda0fc6807eedb6cf69f5c1%40%3Cgeneral.hadoop.apache.org%3E"},{"type":"ADVISORY","url":"https://security.netapp.com/advisory/ntap-20201103-0003/"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/hadoop","events":[{"introduced":"c25427ceca461ee979d30edd7a4b0f50718e6533"},{"last_affected":"1002c582d86ae8689c497c3d31b73f1ab92d5e29"}],"database_specific":{"extracted_events":[{"introduced":"3.0.0-NA"},{"last_affected":"3.0.0-NA"},{"introduced":"3.0.0-alpha4"},{"last_affected":"3.0.0-alpha4"},{"introduced":"3.0.0-beta1"},{"last_affected":"3.0.0-beta1"}],"source":"CPE_STRING","cpe":["cpe:2.3:a:apache:hadoop:3.0.0:-:*:*:*:*:*:*","cpe:2.3:a:apache:hadoop:3.0.0:alpha4:*:*:*:*:*:*","cpe:2.3:a:apache:hadoop:3.0.0:beta1:*:*:*:*:*:*"]}}],"versions":["3.0.0-NA","3.0.0-alpha4","3.0.0-beta1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-11764.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}