lib/npm.js in Node Packaged Modules (npm) before 1.3.3 allows local users to overwrite arbitrary files via a symlink attack on temporary files with predictable names that are created when unpacking archives.
www.openwall.com/lists/oss-security/2013/07/10/17
www.openwall.com/lists/oss-security/2013/07/11/9
www.securityfocus.com/bid/61083
bugs.debian.org/cgi-bin/bugreport.cgi?bug=715325
bugzilla.redhat.com/show_bug.cgi?id=983917
exchange.xforce.ibmcloud.com/vulnerabilities/87141
github.com/npm/npm/commit/f4d31693
github.com/npm/npm/issues/3635