CVE-2021-37937

Name: CVE-2021-37937
Creator: NVD / NIST
Published: 2023-11-22T02:15:42.043+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.71%

Last modified Jun 17, 2026

CVE-2021-37937 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. An issue was found with how API keys are created with the Fleet-Server service account. When an API key is created with a service account, it is possible that the API key could be created with higher privileges than intended. EPSS estimates a 0.71% chance of exploitation in the next 30 days.

Description

An issue was found with how API keys are created with the Fleet-Server service account. When an API key is created with a service account, it is possible that the API key could be created with higher privileges than intended. Using this vulnerability, a compromised Fleet-Server service account could escalate themselves to a super-user.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.71%

49.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions
Elastic	Elasticsearch	>= 7.13.0, <= 7.14.0

References

https://discuss.elastic.co/t/elastic-stack-7-14-1-security-update/283077Vendor Advisory
https://www.elastic.co/community/securityVendor Advisory
https://discuss.elastic.co/t/elastic-stack-7-14-1-security-update/283077Vendor Advisory
https://www.elastic.co/community/securityVendor Advisory

Timeline

Published: Nov 22, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-37937?

How severe is CVE-2021-37937?

CVE-2021-37937 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.71% probability of exploitation in the next 30 days.

How do I fix CVE-2021-37937?

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-2021-37937?

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

Scan your code now

Source: NVD / NIST