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

CVSS v3 5.7 MEDIUM

5.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.1 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::
	cpe:2.3:a:elastic:elasticsearch::::::::

History

23 Dec 2025, 17:39

Type	Values Removed	Values Added
First Time		Elastic Elastic elasticsearch
CPE		cpe:2.3:a:elastic:elasticsearch::::::::
References	~~() 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://discuss.elastic.co/t/elasticsearch-8-18-8-8-19-5-9-0-8-9-1-5-security-update-esa-2025-18/382453 - Vendor Advisory

10 Oct 2025, 10:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-10-10 10:15

Updated : 2025-12-23 17:39

NVD link : CVE-2025-37727

Mitre link : CVE-2025-37727

CVE.ORG link : CVE-2025-37727

JSON object : View

Products Affected

elastic

elasticsearch

CWE

CWE-532

Insertion of Sensitive Information into Log File

{"id": "CVE-2025-37727", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security@elastic.co", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.7, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.1}]}, "published": "2025-10-10T10:15:34.167", "references": [{"url": "https://discuss.elastic.co/t/elasticsearch-8-18-8-8-19-5-9-0-8-9-1-5-security-update-esa-2025-18/382453", "tags": ["Vendor Advisory"], "source": "security@elastic.co"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security@elastic.co", "description": [{"lang": "en", "value": "CWE-532"}]}], "descriptions": [{"lang": "en", "value": "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"}], "lastModified": "2025-12-23T17:39:24.717", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D9FEE402-3C43-4A12-B8E7-12BC2FF677A1", "versionEndIncluding": "7.17.29", "versionStartIncluding": "7.0.0"}, {"criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C4E08DEF-7842-4C60-8E7F-62E838582236", "versionEndExcluding": "8.18.8", "versionStartIncluding": "8.0.0"}, {"criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D6DA9F43-2C7F-40D4-A269-FA1AB9FBD4A8", "versionEndExcluding": "8.19.5", "versionStartIncluding": "8.19.0"}, {"criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3EE9E82C-9BE4-46DF-874D-4D773C89391C", "versionEndExcluding": "9.0.8", "versionStartIncluding": "9.0.0"}, {"criteria": "cpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E8D5437B-B02A-43DD-A739-30A687ABD3FC", "versionEndExcluding": "9.1.5", "versionStartIncluding": "9.1.0"}], "operator": "OR"}]}], "sourceIdentifier": "security@elastic.co"}