{"id":"CVE-2020-35149","aliases":["GHSA-45q2-34rf-mr94"],"url":"https://o3.security/vulnerability/CVE-2020-35149","summary":"Code Injection in mquery","details":"lib/utils.js in mquery before 3.2.3 allows a pollution attack because a special property (e.g., __proto__) can be copied during a merge or clone operation.","published":"2020-12-11T19:15:12.887Z","modified":"2026-08-27T03:48:39.575702909Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"npm","name":"mquery","fixedVersion":"3.2.3"}],"fix":{"url":"https://github.com/aheckmann/mquery/commit/792e69fd0a7281a0300be5cade5a6d7c1d468ad4","label":"aheckmann/mquery@792e69f"},"references":[{"type":"FIX","url":"https://github.com/aheckmann/mquery/commit/792e69fd0a7281a0300be5cade5a6d7c1d468ad4"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-27T03:48:39.575702909Z"}}