CVE-2025-37731

high

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.

References

https://github.com/MortalYar/nvd-vault

https://github.com/MortalYar/nvd-scanner

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-203360

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

Details

Source: Mitre, NVD

Published: 2025-12-15

Updated: 2025-12-18

Risk Information

CVSS v2

Base Score: 7.1

Vector: CVSS2#AV:N/AC:H/Au:N/C:C/I:C/A:N

Severity: High

CVSS v3

Base Score: 7.4

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

Severity: High

EPSS

EPSS: 0.0002