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

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - 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 (CVE-2025-37727)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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 (CVE-2025-37727)

Note that Nessus relies on the presence of the package as reported by the vendor.

The version of Elasticsearch installed on the remote host is prior to 8.18.8, 8.19.5, 9.0.8, or 9.1.5. It is, therefore, affected by a vulnerability as referenced in the ESA-2025-18 advisory.

  - 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. (CVE-2025-37727)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Type	Severity
461154	Echo: org.elasticsearch:elasticsearch: security update to 8.18.8	Tenable Cloud Security	Echo Local Security Checks	Local	medium
461154	Echo: org.elasticsearch:elasticsearch: security update to 8.18.8	Tenable Self-Hosted Container Security	Echo Local Security Checks	Local	medium
271511	Linux Distros Unpatched Vulnerability : CVE-2025-37727	Nessus	Misc.	Local	medium
435585	SCA: security update for org.elasticsearch:elasticsearch (GHSA-56r7-h6mw-rcfv)	Tenable Cloud Security	SCA Checks	Local	medium
435585	SCA: security update for org.elasticsearch:elasticsearch (GHSA-56r7-h6mw-rcfv)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium
269983	Elasticsearch 7.0.x <= 7.17.29 / 8.0.x < 8.18.8 / 8.19.x < 8.19.5 / 9.0.x < 9.0.8 / 9.1.x < 9.1.5 (ESA-2025-18)	Nessus	Misc.	Combined	medium

Detections

Analytics

CVE-2025-37727

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium