{"cve":"CVE-2012-3376","nvd":{"published":"2012-07-12T19:55:06.343","modified":"2026-06-16T23:43:06.303","status":"Modified","description":"DataNodes in Apache Hadoop 2.0.0 alpha does not check the BlockTokens of clients when Kerberos is enabled and the DataNode has checked out the same BlockPool twice from a NodeName, which might allow remote clients to read arbitrary blocks, write to blocks to which they only have read access, and have other unspecified impacts.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://archives.neohapsis.com/archives/bugtraq/2012-07/0049.html","http://www.securityfocus.com/bid/54358","https://www.cloudera.com/documentation/other/security-bulletins/topics/csb_topic_1.html","http://archives.neohapsis.com/archives/bugtraq/2012-07/0049.html","http://www.securityfocus.com/bid/54358"],"products":["apache:hadoop"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2012-3376","score":0.02633,"percentile":0.85541,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-qmh2-h7r6-gm6q","url":"https://osv.dev/vulnerability/GHSA-qmh2-h7r6-gm6q","summary":"Client BlockTokens not checked in Apache Hadoop","modified":"2023-11-08T03:57:05.917360Z","packages":[{"ecosystem":"Maven","name":"org.apache.hadoop:hadoop-client","purl":"pkg:maven/org.apache.hadoop/hadoop-client","ranges":[">=2.0.0-alpha <2.0.1-alpha"],"fixed":["2.0.1-alpha"]}]}],"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."]}