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.
{
"github_reviewed_at": "2022-07-06T19:43:24Z",
"github_reviewed": true,
"cwe_ids": [
"CWE-200"
],
"nvd_published_at": "2017-08-30T19:29:00Z",
"severity": "MODERATE"
}