{"id":"GHSA-46fh-8fc5-xcwx","aliases":[],"status":"published","title":"Prototype Pollution in lodash.defaultsdeep","description":"Versions of `lodash.defaultsdeep` before 4.6.1 are vulnerable to Prototype Pollution. The function 'defaultsDeep' may allow a malicious user to modify the prototype of `Object` via `__proto__` causing the addition or modification of an existing property that will exist on all objects.\n\n\n\n\n## Recommendation\n\nUpdate to version 4.6.1 or later.","facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-1321"],"published":"2020-09-03T18:09:16Z","modified":"2023-01-09T05:04:07Z","fixes":[{"ecosystem":"npm","package":"lodash.defaultsdeep","fixed_in":["4.6.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"npm","package":"lodash.defaultsdeep","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.6.1"}]}]},{"source":"osv","ecosystem":"npm","package":"lodash.defaultsdeep","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"4.6.1"}]}]}],"references":[{"url":"https://www.npmjs.com/advisories/1070","tags":["web"]},{"url":"https://github.com/advisories/GHSA-46fh-8fc5-xcwx"}],"sources":{"ghsa":[{"id":"GHSA-46fh-8fc5-xcwx","title":"Prototype Pollution in lodash.defaultsdeep","description":"Versions of `lodash.defaultsdeep` before 4.6.1 are vulnerable to Prototype Pollution. The function 'defaultsDeep' may allow a malicious user to modify the prototype of `Object` via `__proto__` causing the addition or modification of an existing property that will exist on all objects.\n\n\n\n\n## Recommendation\n\nUpdate to version 4.6.1 or later.","status":"published","published":"2020-09-03T18:09:16Z","modified":"2023-01-09T05:04:07Z","cwes":["CWE-1321"],"updated_at":"2026-11-02T14:36:08.863482Z"}],"osv":[{"id":"GHSA-46fh-8fc5-xcwx","title":"Prototype Pollution in lodash.defaultsdeep","description":"Versions of `lodash.defaultsdeep` before 4.6.1 are vulnerable to Prototype Pollution. The function 'defaultsDeep' may allow a malicious user to modify the prototype of `Object` via `__proto__` causing the addition or modification of an existing property that will exist on all objects.\n\n\n\n\n## Recommendation\n\nUpdate to version 4.6.1 or later.","status":"published","published":"2020-09-03T18:09:16Z","modified":"2020-08-31T18:46:13Z","cwes":["CWE-1321"],"updated_at":"2026-11-02T15:46:36.434231Z"}]}}