Npm Algoliasearch-helper vulnerabilities
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Published CVEs affecting Npm Algoliasearch-helper: 2 record(s), with affected versions and fixes.
CVE-2025-3193
High · 7.5
CWE-1321 Sep 27, 2025
algoliasearch-helper is vulnerable to Prototype Pollution in _merge()
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.
This is related to but distinct from the issue reported in [CVE-2021-23433](https://security.snyk.io/vuln/SNYK-JS-ALGOLIASEARCHHELPER-1570421).
**NOTE:** This vulnerability is not exploitable in the default configuration of InstantSearch since searchParameters are not modifiable by users.
CVE-2021-23433
Critical · 9.8
CWE-1321 Nov 19, 2021
Prototype Pollution
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.