Vulnerability record · CVE-2021-22146 · published 21 July 2021

CVE-2021-22146: Elasticsearch vulnerability

Elastic · Elasticsearch

All versions of Elastic Cloud Enterprise has the Elasticsearch “anonymous” user enabled by default in deployed clusters. While in the default setting the anonymous user has no permissions and is unable to successfully query any Elasticsearch APIs, an attacker could leverage the anonymous user to gain insight into certain details of a deployed cluster.

7.5 CVSS 3.1 High EPSS 36% · top 1.6%

7.5CVSS 3.1 base score, v2 5.0

36%EPSS exploitation probability, 30 days

NoNot in CISA KEV

1Affected product versions listed by NVD

6References, 2 tagged exploit

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

Elasticsearch Elastic

References

Link	Tags
http://packetstormsecurity.com/files/163655/Elasticsearch-ECE-7.13.3-Database-Disclosure.html	ExploitThird Party AdvisoryVDB Entry
https://discuss.elastic.co/t/elastic-cloud-enterprise-security-update/279180	Vendor Advisory
https://security.netapp.com/advisory/ntap-20210819-0005/	Third Party Advisory
http://packetstormsecurity.com/files/163655/Elasticsearch-ECE-7.13.3-Database-Disclosure.html	ExploitThird Party AdvisoryVDB Entry
https://discuss.elastic.co/t/elastic-cloud-enterprise-security-update/279180	Vendor Advisory
https://security.netapp.com/advisory/ntap-20210819-0005/	Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2021-22146), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.