{"id":"CVE-2021-3645","aliases":["GHSA-cqqh-49mx-fq63"],"url":"https://o3.security/vulnerability/CVE-2021-3645","summary":"merge vulnerable to Prototype Pollution","details":"merge is vulnerable to Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')","published":"2021-09-10T11:15:09.933Z","modified":"2026-07-08T06:01:17.191051822Z","cvss":{"score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"npm","name":"@viking04/merge","fixedVersion":"1.0.2"}],"fix":{"url":"https://github.com/viking04/merge/commit/baba40332080b38b33840d2614df6d4142dedaf6","label":"viking04/merge@baba403"},"references":[{"type":"FIX","url":"https://github.com/viking04/merge/commit/baba40332080b38b33840d2614df6d4142dedaf6"},{"type":"EVIDENCE","url":"https://huntr.dev/bounties/ef387a9e-ca3c-4c21-80e3-d34a6a896262"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T06:01:17.191051822Z"}}