CVE-2025-37727

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

Published: Oct 10, 2025
Updated: Oct 11, 2025
CVE: CVE-2025-37727
GHSA: GHSA-56r7-h6mw-rcfv
Severity: Medium
Exploit:

CVSS v3:

Severity: Unknown
Score:
AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CWEs:

CWE-532

Affected Software
References

Software	From	Fixed in
org.elasticsearch / elasticsearch	7.0.0	8.18.8
org.elasticsearch / elasticsearch	8.19.0	8.19.5
org.elasticsearch / elasticsearch	9.0.0-beta1	9.0.8
org.elasticsearch / elasticsearch	9.1.0	9.1.5

https://discuss.elastic.co/t/elasticsearch-8-18-8-8-19-5-9-0-8-9-1-5-security-update-esa-2025-18/382453
https://github.com/elastic/elasticsearch/commit/e982eef416a5e1c2a4e94236d7d3b33b5c8d07db
https://www.elastic.co/guide/en/elasticsearch/reference/8.18/release-notes-8.18.8.html

Vulnerability Database

CVE-2025-37727

Deep Security Visibility Without the Complexity