elastic/elasticsearch · Security
Elasticsearch PKI Realm Authentication Bypass Vulnerability Allows User Impersonation Through Crafted Client Certificates
- GHSA ID
- GHSA-m9gh-789g-q5pv
- CVE ID
- CVE-2025-37731
- Severity
- medium
- Published
- Updated
- CVSS
- 6.8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- CVSS v3
- 6.8 · CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
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.
CWEs
- CWE-287 · Improper Authentication
- CWE-295 · Improper Certificate Validation
References
- https://nvd.nist.gov/vuln/detail/CVE-2025-37731 ↗
- https://discuss.elastic.co/t/elasticsearch-8-19-8-9-1-8-and-9-2-2-security-update-esa-2025-27/384063 ↗
- https://github.com/elastic/elasticsearch/commit/cd97b8566bf56e628070021300784cb9cee0286f ↗
- https://github.com/elastic/elasticsearch/commit/d8a408da79f214395845d99d241e832077045983 ↗
- https://github.com/elastic/elasticsearch/commit/e519fe4c51a3c887675eb7daea2f914738847f23 ↗
- https://github.com/advisories/GHSA-m9gh-789g-q5pv ↗