{"id":"CVE-2016-5001","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.","aliases":["GHSA-8r28-r8cp-g6cp"],"modified":"2026-07-08T12:41:31.183548Z","published":"2017-08-30T19:29:00.147Z","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"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/hadoop","events":[{"introduced":"0"},{"last_affected":"cc865b490b9a6260e9611a5b8633cab885b3d247"},{"introduced":"d4c8d4d4d203c934e8074b31289a28724c0842cf"},{"last_affected":"ac0538aac347bfd97cc0dee1db49db503c15f1d9"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"last_affected":"2.6.3"},{"introduced":"2.7.0"},{"last_affected":"2.7.0"},{"introduced":"2.7.1"},{"last_affected":"2.7.1"}],"source":["CPE_RANGE","CPE_STRING"],"cpe":["cpe:2.3:a:apache:hadoop:*:*:*:*:*:*:*:*","cpe:2.3:a:apache:hadoop:2.7.0:*:*:*:*:*:*:*","cpe:2.3:a:apache:hadoop:2.7.1:*:*:*:*:*:*:*"]}}],"versions":["2.7.0","2.7.1","release-2.6.3","release-2.6.3-RC1","release-2.6.3-RC0.1","release-2.6.3-RC0","release-2.6.1","release-2.6.1-RC1","release-2.6.1-RC0","release-2.7.1","release-2.7.1-RC0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-5001.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}