CVE-2025-37731

HighCVSS 7.4/10Last modified Oct 7, 2026

Description

Improper Authentication in Elasticsearch PKI realm can lead to user impersonation via specially crafted client certificates. A malicious actor would need to have such a crafted client certificate signed by a legitimate, trusted Certificate Authority.

Metrics

CVSS 3.1 7.4/10CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Weakness enumeration

CWE-287

Affected software

Vendor	Product	Versions
Elastic	Elasticsearch	>= 7.0.0, <= 7.17.29; >= 8.0.0, <= 8.19.7; >= 9.0.0, <= 9.1.7; >= 9.2.0, <= 9.2.1

References

https://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-and-9-2-2-security-update-esa-2025-27/384063Vendor Advisory

Timeline

Published: Dec 15, 2025
Last modified: Oct 7, 2026
NVD status: Analyzed

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