HOMEVULNERABILITIESCVE-2025-3193
HIGH

CVE-2025-3193

CWE-1321Published: September 27, 2025· Updated: Jun 17, 2026

7.5
CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2025-3193 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 7.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

algolia1 product(s)
algoliasearch-helper
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://github.com/algolia/algoliasearch-helper-js/commit/776dff23c87b0902e554e02a8c2567d2580fe12a
PATCHhttps://github.com/algolia/algoliasearch-helper-js/issues/922
ADVISORYhttps://security.snyk.io/vuln/SNYK-JS-ALGOLIASEARCHHELPER-3318396

All References (3)

→
https://github.com/algolia/algoliasearch-helper-js/commit/776dff23c87b0902e554e02a8c2567d2580fe12aPatch
→
https://github.com/algolia/algoliasearch-helper-js/issues/922Exploit · Issue Tracking · Patch
→
https://security.snyk.io/vuln/SNYK-JS-ALGOLIASEARCHHELPER-3318396Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2025-3193
CVSS Score7.5 / 10
SeverityHIGH
WeaknessCWE-1321
CISA KEVNo
Affected1 vendor(s)
PublishedSep 27, 2025

Related CVEs (CWE-1321)

CVE-2026-25150
10.0
CVE-2024-39008
10.0
CVE-2024-38999
10.0
CVE-2020-12079
10.0
CVE-2021-23449
10.0
CVE-2021-23594
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2025-3193 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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