{"id":"UBUNTU-CVE-2021-3918","details":"json-schema is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","modified":"2026-01-30T00:51:17.623464Z","published":"2021-11-13T09:15:00Z","related":["USN-6103-1"],"upstream":["CVE-2021-3918"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-3918"},{"type":"REPORT","url":"https://github.com/kriszyp/json-schema/commit/22f146111f541d9737e832823699ad3528ca7741"},{"type":"REPORT","url":"https://huntr.dev/bounties/bb6ccd63-f505-4e3a-b55f-cd2662c261a9"},{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-6103-1"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-3918"}],"affected":[{"package":{"name":"node-json-schema","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/node-json-schema@0.2.3-1+deb10u1build0.18.04.1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.3-1+deb10u1build0.18.04.1"}]}],"versions":["0.2.3-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"node-json-schema","binary_version":"0.2.3-1+deb10u1build0.18.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3918.json"}},{"package":{"name":"node-json-schema","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-json-schema@0.2.3-1+deb10u1build0.20.04.1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.2.3-1+deb10u1build0.20.04.1"}]}],"versions":["0.2.3-1"],"ecosystem_specific":{"availability":"No subscription required","binaries":[{"binary_name":"node-json-schema","binary_version":"0.2.3-1+deb10u1build0.20.04.1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-3918.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:H/I:H/A:H"},{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"medium"}]}