CVE-2025-37727
MEDIUM5.7EPSS 0.02%Elasticsearch: Insertion of Sensitive Information into Log File via reindex API
Published: 10/10/2025Modified: 2/4/2026
Description
Insertion of sensitive information in log file in Elasticsearch can lead to loss of confidentiality under specific preconditions when auditing requests to the reindex API https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-reindex
Affected packages (2)
- Bitnami/elasticsearchfrom 0, < 8.18.8, >= 8.19.0, < 8.19.5, >= 9.0.0, < 9.0.8, >= 9.1.0, < 9.1.5
- Maven/org.elasticsearch:elasticsearch>= 7.0.0, < 8.18.8
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.7 | CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
References (5)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2025-37727
- PATCHhttps://github.com/elastic/elasticsearch
- WEBhttps://discuss.elastic.co/t/elasticsearch-8-18-8-8-19-5-9-0-8-9-1-5-security-update-esa-2025-18/382453
- WEBhttps://github.com/elastic/elasticsearch/commit/e982eef416a5e1c2a4e94236d7d3b33b5c8d07db
- WEBhttps://www.elastic.co/guide/en/elasticsearch/reference/8.18/release-notes-8.18.8.html