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CVE-2025-37727— Elasticsearch Insertion of sensitive information in log file

Quick assessment

Affected
Elastic Elasticsearch
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Elastic Elasticsearch是荷兰Elastic公司的一个基于Lucene库的搜索引擎。 Elastic Elasticsearch存在安全漏洞，该漏洞源于在特定条件下审计请求时会将敏感信息插入日志文件，可能导致信息泄露。

CVSS 5.7 · Medium EPSS 0.25% · P16

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2025-37727

Vulnerability Information
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Vulnerability Title
Elasticsearch Insertion of sensitive information in log file
Source: CVE Program / CVE List V5
Vulnerability 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
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过日志文件的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Elastic Elasticsearch 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Elastic Elasticsearch是荷兰Elastic公司的一个基于Lucene库的搜索引擎。 Elastic Elasticsearch存在安全漏洞，该漏洞源于在特定条件下审计请求时会将敏感信息插入日志文件，可能导致信息泄露。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Elastic Elasticsearch 7.0.0 ~ 7.17.29 -

II. Public POCs for CVE-2025-37727

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III. Intelligence Information for CVE-2025-37727

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Other References for CVE-2025-37727 (1)

Same Patch Batch · Elastic · 2025-10-10 · 3 CVEs total

CVE-2025-25018 8.7 HIGH Kibana Stored Cross-Site Scripting (XSS)
CVE-2025-25017 8.2 HIGH Kibana Stored Cross-Site Scripting (XSS)

IV. Related Vulnerabilities

Same product: Elasticsearch
Same vendor: Elastic
Same weakness: CWE-532