The Node Reference module in Content Construction Kit (CCK) module 5.x before 5.x-1.11 and 6.x before 6.x-2.7 for Drupal does not perform access checks before displaying referenced nodes, which allows remote attackers to read controlled nodes.
https://exchange.xforce.ibmcloud.com/vulnerabilities/59515
http://www.vupen.com/english/advisories/2010/1546
http://secunia.com/advisories/40318
http://secunia.com/advisories/40243
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043191.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043172.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043100.html