{"cve":"CVE-2025-3193","nvd":{"published":"2025-09-27T05:15:30.253","modified":"2026-10-19T16:10:00.260","status":"Modified","description":"Versions of the package algoliasearch-helper from 2.0.0-rc1 and before 3.11.2 are vulnerable to Prototype Pollution in the _merge() function in merge.js, which allows constructor.prototype to be written even though doing so throws an error. In the \"extreme edge-case\" that the resulting error is caught, code injected into the user-supplied search parameter may be exeucted.\r\rThis is related to but distinct from the issue reported in [CVE-2021-23433](https://security.snyk.io/vuln/SNYK-JS-ALGOLIASEARCHHELPER-1570421).\r\r**NOTE:** This vulnerability is not exploitable in the default configuration of InstantSearch since searchParameters are not modifiable by users.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-1321"],"references":["https://github.com/algolia/algoliasearch-helper-js/commit/776dff23c87b0902e554e02a8c2567d2580fe12a","https://github.com/algolia/algoliasearch-helper-js/issues/922","https://security.snyk.io/vuln/SNYK-JS-ALGOLIASEARCHHELPER-3318396"],"products":["algolia:algoliasearch-helper"],"source":"nvd","synced_at":"2026-10-19T22:10:08.713834912+00:00"},"epss":{"cve":"CVE-2025-3193","score":0.00516,"percentile":0.43676,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-529q-4j3p-7c5r","url":"https://osv.dev/vulnerability/GHSA-529q-4j3p-7c5r","summary":"algoliasearch-helper is vulnerable to Prototype Pollution in _merge()","modified":"2025-09-30T21:27:27.707214Z","packages":[{"ecosystem":"npm","name":"algoliasearch-helper","purl":"pkg:npm/algoliasearch-helper","ranges":[">=2.0.0-rc1 <3.11.2"],"fixed":["3.11.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}