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CVE-2025-37727

Elasticsearch Insertion of sensitive information in log file

5.7 MediumFix 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

Attack profile

How easy it is to exploit

Attack vector
Adjacent network
Complexity
Low
Privileges needed
Low
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
None

Exploit likelihood

0.25%Up 0.2 points since Oct 10, 2025
90%50%10%1%

What each source reports

CVE List Score used 5.7

Elasticsearch Insertion of sensitive information in log file

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

Record
CVE-2025-37727
CVSS 3.1
5.7 MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-532
Updated
2026-11-02
EUVDEUVD-2025-33703 5.7

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

Record
EUVD-2025-33703
CVSS 3.1
5.7 MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-56r7-h6mw-rcfv 5.7

Elasticsearch: Insertion of Sensitive Information into Log File via reindex API

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

Record
GHSA-56r7-h6mw-rcfv
CVSS 3.1
5.7 MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-532
Updated
2026-11-02
NVD 5.7

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

Record
CVE-2025-37727
CVSS 3.1
5.7 MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-532
Updated
2026-11-02
OSV 5.7

Elasticsearch Insertion of sensitive information in log file

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

Record
CVE-2025-37727
CVSS 3.1
5.7 MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-532
Updated
2026-11-02
OSVGHSA-56r7-h6mw-rcfv 5.7

Elasticsearch: Insertion of Sensitive Information into Log File via reindex API

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

Record
GHSA-56r7-h6mw-rcfv
CVSS 3.1
5.7 MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weakness
CWE-532
Updated
2026-11-02
OSVROOT-APP-MAVEN-CVE-2025-37727 5.7

CVE-2025-37727 in io.root.org.elasticsearch:elasticsearch - Patched by Root

Root has patched CVE-2025-37727 in the io.root.org.elasticsearch:elasticsearch package for Root:Maven. Multiple fixed versions available.

Record
ROOT-APP-MAVEN-CVE-2025-37727
CVSS 3.1
5.7 MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVUBUNTU-CVE-2025-37727 5.7

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

Record
UBUNTU-CVE-2025-37727
CVSS 3.1
5.7 MediumCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Updated
2026-11-02
OSVBIT-elasticsearch-2025-37727 No score

Elasticsearch Insertion of sensitive information in log file

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

Record
BIT-elasticsearch-2025-37727
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.elasticsearch.plugin:reindex-client
Maven
 7.0.0 up to 8.18.8
8.18.8
org.elasticsearch.plugin:reindex-client
Maven
 8.19.0 up to 8.19.5
8.19.5
org.elasticsearch.plugin:reindex-client
Maven
 9.0.0-beta1 up to 9.0.8
9.0.8
org.elasticsearch.plugin:reindex-client
Maven
 9.1.0 up to 9.1.5
9.1.5
elasticsearch
Bitnami
 before 8.18.8, 8.19.0 up to 8.19.5, 9.0.0 up to 9.0.8, 9.1.0 up to 9.1.5
8.18.88.19.59.0.89.1.5
org.elasticsearch.plugin:reindex-client
Maven
 7.0.0 up to 8.18.8, plus listed versions
7.0.17.1.07.1.17.10.07.10.1
Show 45 moreShow less
7.10.27.11.07.11.17.11.27.12.07.12.17.13.07.13.17.13.27.13.37.13.47.14.07.14.17.14.27.15.07.15.17.15.27.16.07.16.17.16.27.16.37.17.07.17.17.17.107.17.117.17.127.17.137.17.147.17.157.17.167.17.177.17.187.17.197.17.27.17.207.17.217.17.227.17.237.17.247.17.257.17.267.17.277.17.287.17.297.17.3
8.18.8
io.root.org.elasticsearch:elasticsearch
Root:Maven
 before 9.1.3-root.io.2
9.1.3-root.io.29.1.3-root.io.3
org.elasticsearch:elasticsearch
Root:Maven
 before 9.1.3-aikido.3
9.1.3-aikido.3
elasticsearch
Ubuntu:16.04:LTS
 All versions, plus listed versions
1.6.2+dfsg-11.7.3+dfsg-11.7.3+dfsg-21.7.3+dfsg-3
 None known

History

History
RecordedChangedSources
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-37727 is a medium vulnerability (CVSS 5.7) in Elastic Elasticsearch, published October 10, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.25%, the 16th percentile. Fixed in org.elasticsearch.plugin:reindex-client 8.18.8.

References

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