{"id":"UBUNTU-CVE-2019-20149","details":"ctorName in index.js in kind-of v6.0.2 allows external user input to overwrite certain internal attributes via a conflicting name, as demonstrated by 'constructor': {'name':'Symbol'}. Hence, a crafted payload can overwrite this builtin attribute to manipulate the type detection result.","modified":"2025-10-24T04:48:08Z","published":"2019-12-30T19:15:00Z","upstream":["CVE-2019-20149"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-20149"},{"type":"REPORT","url":"https://github.com/jonschlinkert/kind-of/issues/30"},{"type":"REPORT","url":"https://github.com/jonschlinkert/kind-of/pull/31"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-20149"}],"affected":[{"package":{"name":"node-kind-of","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/node-kind-of@6.0.2+dfsg-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.0.4+dfsg-1","6.0.1+dfsg-1","6.0.2+dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-kind-of","binary_version":"6.0.2+dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-20149.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}