{"id":"GHSA-vpf5-82c8-9v36","summary":"Prototype Pollution in algoliasearch-helper","details":"The package algoliasearch-helper before 3.6.2 are vulnerable to Prototype Pollution due to use of the merge function in src/SearchParameters/index.jsSearchParameters._parseNumbers without any protection against prototype properties. Note that this vulnerability is only exploitable if the implementation allows users to define arbitrary search patterns.","aliases":["CVE-2021-23433","SNYK-JS-ALGOLIASEARCHHELPER-1570421"],"modified":"2026-09-10T03:49:16.257548510Z","published":"2021-11-23T21:15:35Z","database_specific":{"github_reviewed_at":"2021-11-22T19:34:30Z","nvd_published_at":"2021-11-19T20:15:00Z","cwe_ids":["CWE-1321","CWE-915"],"severity":"CRITICAL","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-23433"},{"type":"WEB","url":"https://github.com/algolia/algoliasearch-helper-js/commit/4ff542b70b92a6b81cce8b9255700b0bc0817edd"},{"type":"PACKAGE","url":"https://github.com/algolia/algoliasearch-helper-js"},{"type":"WEB","url":"https://github.com/algolia/algoliasearch-helper-js/blob/3.5.5/src/SearchParameters/index.js%23L291"},{"type":"WEB","url":"https://snyk.io/vuln/SNYK-JS-ALGOLIASEARCHHELPER-1570421"}],"affected":[{"package":{"name":"algoliasearch-helper","ecosystem":"npm","purl":"pkg:npm/algoliasearch-helper"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.6.2"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/11/GHSA-vpf5-82c8-9v36/GHSA-vpf5-82c8-9v36.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}