Vulnerability · Published Oct 10, 2025 · Assigned by elastic
CVE-2025-37727Elasticsearch Insertion of sensitive information in log file
Medium 5.7
In plain English
A medium-severity sensitive data in logs in Elasticsearch from Elastic. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.7Medium
Exploit odds (30 days)0.3%top 83.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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 & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Maven | org.elasticsearch.plugin:reindex-client | 8.18.8 | GHSA-56r7-h6mw-rcfv |
| Maven | org.elasticsearch.plugin:reindex-client | 8.19.5 | GHSA-56r7-h6mw-rcfv |
| Maven | org.elasticsearch.plugin:reindex-client | 9.0.8 | GHSA-56r7-h6mw-rcfv |
| Maven | org.elasticsearch.plugin:reindex-client | 9.1.5 | GHSA-56r7-h6mw-rcfv |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Elastic | Elasticsearch | 7.0.0 – through 7.17.298.0.0 – through 8.18.78.19.0 – through 8.19.49.0.0 – through 9.0.79.1.0 – through 9.1.4 |
Weakness: CWE-532 · Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N