CVE-2025-3193

HIGH EPSS 37.9%
Published Sep 27, 20259mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Sep 27, 2025 9mo ago
Last Modified Jun 17, 2026 2w ago

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. 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.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
37.9% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-1321

Affected Products 1

VendorProductVersionRange
algoliaalgoliasearch-helper*≥2.0.0  –  <3.11.2

References 3

  • github.com https://github.com/algolia/algoliasearch-helper-js/commit/776dff23c87b0902e554e02a8c2567d2580fe12a
    Patch
  • github.com https://github.com/algolia/algoliasearch-helper-js/issues/922
    ExploitIssue TrackingPatch
  • security.snyk.io https://security.snyk.io/vuln/SNYK-JS-ALGOLIASEARCHHELPER-3318396
    ExploitThird Party Advisory

Remediation

  • github.com https://github.com/algolia/algoliasearch-helper-js/commit/776dff23c87b0902e554e02a8c2567d2580fe12a
    Patch
  • github.com https://github.com/algolia/algoliasearch-helper-js/issues/922
    ExploitIssue TrackingPatch