CVE-2025-37727

Name: CVE-2025-37727
Creator: NVD / NIST
Published: 2025-10-10T10:15:34.167+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.7/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2025-37727 is a medium-severity vulnerability rated 5.7/10 on the CVSS scale. 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. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

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

Metrics

CVSS 3.1

5.7/10

CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS Probability

0.22%

13.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-532

Affected Software

Vendor	Product	Versions
Elastic	Elasticsearch	>= 7.0.0, <= 7.17.29
Elastic	Elasticsearch	>= 8.0.0, < 8.18.8
Elastic	Elasticsearch	>= 8.19.0, < 8.19.5
Elastic	Elasticsearch	>= 9.0.0, < 9.0.8
Elastic	Elasticsearch	>= 9.1.0, < 9.1.5

References

https://discuss.elastic.co/t/elasticsearch-8-18-8-8-19-5-9-0-8-9-1-5-security-update-esa-2025-18/382453Vendor Advisory

Timeline

Published: Oct 10, 2025
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2025-37727?

How severe is CVE-2025-37727?

CVE-2025-37727 has a CVSS score of 5.7/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2025-37727?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-37727?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST