{"cve":"CVE-2018-11764","nvd":{"published":"2020-10-21T19:15:13.543","modified":"2026-06-17T01:36:32.453","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":8.8},"cwes":["CWE-306"],"references":["https://lists.apache.org/thread.html/r790ad0a049cde713b93589ecfd4dd2766fda0fc6807eedb6cf69f5c1%40%3Cgeneral.hadoop.apache.org%3E","https://security.netapp.com/advisory/ntap-20201103-0003/","https://lists.apache.org/thread.html/r790ad0a049cde713b93589ecfd4dd2766fda0fc6807eedb6cf69f5c1%40%3Cgeneral.hadoop.apache.org%3E","https://security.netapp.com/advisory/ntap-20201103-0003/"],"products":["apache:hadoop"],"source":"nvd","synced_at":"2026-10-19T21:09:53.489947993+00:00"},"epss":{"cve":"CVE-2018-11764","score":0.02394,"percentile":0.83989,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-4fh8-pm7g-pmxq","url":"https://osv.dev/vulnerability/GHSA-4fh8-pm7g-pmxq","summary":"Authentication bypass in Apache Hadoop","modified":"2026-09-10T03:49:11.529126052Z","packages":[{"ecosystem":"Maven","name":"org.apache.hadoop:hadoop-main","purl":"pkg:maven/org.apache.hadoop/hadoop-main","ranges":[">=3.0.0-alpha4 <3.0.1"],"fixed":["3.0.1"]},{"ecosystem":"Maven","name":"org.apache.hadoop:hadoop-main","purl":"pkg:maven/org.apache.hadoop/hadoop-main","ranges":[">=3.0.0-beta1 <3.0.1"],"fixed":["3.0.1"]},{"ecosystem":"Maven","name":"org.apache.hadoop:hadoop-main","purl":"pkg:maven/org.apache.hadoop/hadoop-main","ranges":[">=3.0.0 <3.0.1"],"fixed":["3.0.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}