{"id":"CVE-2016-5001","aliases":["GHSA-8r28-r8cp-g6cp"],"url":"https://o3.security/vulnerability/CVE-2016-5001","summary":"Exposure of Sensitive Information to an Unauthorized Actor in Apache Hadoop","details":"This is an information disclosure vulnerability in Apache Hadoop before 2.6.4 and 2.7.x before 2.7.2 in the short-circuit reads feature of HDFS. A local user on an HDFS DataNode may be able to craft a block token that grants unauthorized read access to random files by guessing certain fields in the token.","published":"2017-08-30T19:29:00.147Z","modified":"2026-07-08T12:41:31.183548Z","cvss":{"score":5.5,"severity":"MEDIUM","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.apache.hadoop:hadoop-common","fixedVersion":"2.6.4"},{"ecosystem":"Maven","name":"org.apache.hadoop:hadoop-common","fixedVersion":"2.7.2"}],"fix":null,"references":[{"type":"WEB","url":"https://lists.apache.org/thread.html/r66de86b9a608c1da70b2d27d765c11ec88edf6e5dd6f379ab33e072a%40%3Cuser.flink.apache.org%3E"},{"type":"ADVISORY","url":"http://seclists.org/oss-sec/2016/q4/698"},{"type":"ADVISORY","url":"http://www.securityfocus.com/bid/94950"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T12:41:31.183548Z"}}