CVE-2021-22146

Name: CVE-2021-22146
Creator: NVD / NIST
Published: 2021-07-21T15:15:14.1+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 27.79%

Last modified Jun 17, 2026

CVE-2021-22146 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 27.79% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

27.79%

97.8th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Elastic	Elasticsearch	7.13.3

References

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

Timeline

Published: Jul 21, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-22146?

How severe is CVE-2021-22146?

CVE-2021-22146 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 27.79% probability of exploitation in the next 30 days.

How do I fix CVE-2021-22146?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-22146?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST