The merge.recursive function in the merge package <1.2.1 can be tricked into adding or modifying properties of the Object prototype. These properties will be present on all objects allowing for a denial of service attack.
{ "binaries": [ { "binary_name": "libjs-merge", "binary_version": "1.2.0-2" }, { "binary_name": "node-merge", "binary_version": "1.2.0-2" } ] }
{ "binaries": [ { "binary_name": "libjs-merge", "binary_version": "2.1.1+ds-2" }, { "binary_name": "node-merge", "binary_version": "2.1.1+ds-2" } ] }