CVE catalog

CVE-2025-37731

Elasticsearch PKI Realm Authentication Bypass…

[CVE catalog]

A flaw was found in Elasticsearch. This vulnerability allows user impersonation via specially crafted client certificates signed by a legitimate, trusted Certificate Authority (CA). elasticsearch: Elasticsearch: User impersonation due to improper authentication in Public Key Infrastructure (PKI) realm This vulnerability is rated Moderate for Red Hat because it allows user impersonation in Elasticsearch PKI realm. Exploitation requires a malicious actor to possess a specially crafted client certificate signed by a legitimate, trusted Certificate Authority. This impacts Elasticsearch deployments configured with PKI authentication. The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Severity
High · CVSS 7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.19% · Oct 27, 2026

Reported versions and fixes

Each observation applies to its named package, distribution, and release. Distribution backports can fix a vulnerability while retaining an older upstream version number.

Version impact has not been established. The original provider fields are retained below.

Provider details and historical evidence
Original provider fields
{
  "package_releases": [],
  "fixed_versions": [],
  "distribution_packages": [
    {
      "name": "org.elasticsearch.plugin:x-pack-security",
      "ecosystem": "maven",
      "fixed_version": "9.2.2",
      "provider_record_id": "GHSA-M9GH-789G-Q5PV"
    },
    {
      "name": "org.elasticsearch.plugin:x-pack-security",
      "ecosystem": "maven",
      "fixed_version": "9.1.8",
      "provider_record_id": "GHSA-M9GH-789G-Q5PV"
    },
    {
      "name": "org.elasticsearch.plugin:x-pack-security",
      "ecosystem": "maven",
      "fixed_version": "9.2.2",
      "provider_record_id": "GHSA-M9GH-789G-Q5PV"
    },
    {
      "name": "org.elasticsearch.plugin:x-pack-core",
      "ecosystem": "maven",
      "fixed_version": "9.2.2",
      "provider_record_id": "GHSA-M9GH-789G-Q5PV"
    },
    {
      "name": "org.elasticsearch.plugin:x-pack-core",
      "ecosystem": "maven",
      "fixed_version": "9.1.8",
      "provider_record_id": "GHSA-M9GH-789G-Q5PV"
    },
    {
      "name": "org.elasticsearch.plugin:x-pack-core",
      "ecosystem": "maven",
      "fixed_version": "9.2.2",
      "provider_record_id": "GHSA-M9GH-789G-Q5PV"
    },
    {
      "name": "elasticsearch",
      "ranges": [
        {
          "fixed": "9.2.2",
          "introduced": "9.2.0",
          "last_affected": "",
          "start_excluding": ""
        }
      ],
      "ecosystem": "cpe",
      "fixed_version": "9.2.2",
      "provider_record_id": "NVD-CVE-2025-37731"
    },
    {
      "name": "elasticsearch",
      "distro": "ubuntu",
      "ranges": [
        {
          "type": "ECOSYSTEM",
          "events": [
            {
              "introduced": "0"
            }
          ]
        }
      ],
      "release": "16.04",
      "versions": [
        "1.6.2+dfsg-1",
        "1.7.3+dfsg-1",
        "1.7.3+dfsg-2",
        "1.7.3+dfsg-3"
      ],
      "ecosystem": "deb",
      "fixed_version": "",
      "provider_record_id": "UBUNTU-CVE-2025-37731"
    }
  ]
}

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

Observed:

References

[CERT-Bund public advisories] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]