CVE-2025-37727
Medium
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
SeverityMedium
CVSS5.7
Exploit probability—
Product
Elasticsearch
PublishedOct 10, 2025
First seenOct 10, 2025
Weakness typeCWE-532CWE-532
How to fix
Update
- elastic elasticsearch8.18.8, 8.19.5, 9.0.8, 9.1.5 or later
- org.elasticsearch.plugin:reindex-client8.18.8, 8.19.5, 9.0.8, 9.1.5 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| elastic elasticsearch | 7.0.0 ≤ v ≤ 7.17.29, 8.0.0 ≤ v < 8.18.8, 8.19.0 ≤ v < 8.19.5, 9.0.0 ≤ v < 9.0.8, 9.1.0 ≤ v < 9.1.5 | 8.18.8, 8.19.5, 9.0.8, 9.1.5 |
| org.elasticsearch.plugin:reindex-clientMaven | 7.0.0 ≤ v < 8.18.8, 8.19.0 ≤ v < 8.19.5, 9.0.0-beta1 ≤ v < 9.0.8, 9.1.0 ≤ v < 9.1.5 | 8.18.8, 8.19.5, 9.0.8, 9.1.5 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.