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Vulnerability record · CVE-2018-3831 · published 19 September 2018

CVE-2018-3831: Elasticsearch information exposure vulnerability

Elastic · Elasticsearch

Elasticsearch Alerting and Monitoring in versions before 6.4.1 or 5.6.12 have an information disclosure issue when secrets are configured via the API. The Elasticsearch _cluster/settings API, when queried, could leak sensitive configuration information such as passwords, tokens, or usernames. This could allow an authenticated Elasticsearch user to improperly view these details.

8.8 CVSS 3.1 High EPSS 2.0% · top 20.2% CWE-200 · Information exposure
8.8CVSS 3.1 base score, v2 4.0
2.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Elasticsearch Alerting and Monitoring in versions before 6.4.1 or 5.6.12 have an information disclosure issue when secrets are configured via the API. The Elasticsearch _cluster/settings API, when queried, could leak sensitive configuration information such as passwords, tokens, or usernames. This could allow an authenticated Elasticsearch user to improperly view these details.

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

Affected products

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

References

LinkTags
https://discuss.elastic.co/t/elastic-stack-6-4-1-and-5-6-12-security-update/149035 MitigationVendor Advisory
https://www.elastic.co/community/security Vendor Advisory
https://discuss.elastic.co/t/elastic-stack-6-4-1-and-5-6-12-security-update/149035 MitigationVendor Advisory
https://www.elastic.co/community/security Vendor Advisory

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2018-3831), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.