CVE-2018-3831
Exposure of Sensitive Information to an Unauthorized Actor in 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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2018-3831- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE List No score
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.
- Record
CVE-2018-3831- Weakness
- CWE-200
- Updated
- 2026-11-02
EUVDEUVD-2022-5136 No score
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.
- Record
EUVD-2022-5136- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-r9fv-qpm9-rj4g
Exposure of Sensitive Information to an Unauthorized Actor in 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.
- Record
GHSA-r9fv-qpm9-rj4g- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-200
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2018-3831- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVGHSA-r9fv-qpm9-rj4g
Exposure of Sensitive Information to an Unauthorized Actor in 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.
- Record
GHSA-r9fv-qpm9-rj4g- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-200
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
org.elasticsearch:elasticsearchMaven |
5.6.0 up to 5.6.12 | 5.6.12 |
org.elasticsearch:elasticsearchMaven |
6.0.0 up to 6.4.1 | 6.4.1 |
org.elasticsearch:elasticsearchMaven |
5.6.0 up to 5.6.12, plus listed versions 5.6.15.6.105.6.115.6.25.6.3 Show 6 moreShow less5.6.45.6.55.6.65.6.75.6.85.6.9 |
5.6.12 |
org.elasticsearch:elasticsearchMaven |
6.0.0 up to 6.4.1, plus listed versions 6.0.16.1.06.1.16.1.26.1.3 Show 10 moreShow less6.1.46.2.06.2.16.2.26.2.36.2.46.3.06.3.16.3.26.4.0 |
6.4.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2018-3831 is a high vulnerability (CVSS 8.8) in Elastic Elasticsearch, published September 19, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.98%, the 80th percentile. Fixed in org.elasticsearch:elasticsearch 5.6.12.