CVE-2025-37731

highpriority · track · 30EPSS 0.002 · 9 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.19% (9th) EPSS

CVSS 7.4 · high

Is it mine?

23 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · osv · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.4

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.8–7.4

v3.17.4highCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:Nprimary · NVD / NIST USexploitability 2.2 · impact 5.2

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · security@elastic.coexploitability 1.6 · impact 5.2

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:Nsecondary · OSV

v3.16.8mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-287USCWE-287USCWE-295US

affected products (23)

Products and version ranges known to be affected.

Open Source Elasticsearch <8.19.8all versionscert_bundDE
Open Source Elasticsearch <9.1.8all versionscert_bundDE
Open Source Elasticsearch <9.2.2all versionscert_bundDE
Open Source Elasticsearch< 8.19.8cert_bundDE
Open Source Elasticsearch< 9.1.8cert_bundDE
Open Source Elasticsearch< 9.2.2cert_bundDE
Elastic Elasticsearch≤ 7.0.0 ≤7.17.29enisa_euvdEU
Elastic Elasticsearch≤ 8.0.0 ≤8.19.7enisa_euvdEU
Elastic Elasticsearch≤ 9.2.0 ≤9.2.1enisa_euvdEU
Elastic Elasticsearch≤ 9.0.0 ≤9.1.7enisa_euvdEU
elastic elasticsearch7.0.0 → 7.17.29nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
elastic elasticsearch8.0.0 → 8.19.8nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
elastic elasticsearch9.0.0 → 9.1.8nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
elastic elasticsearch9.2.0 → 9.2.2nvdUScpe:2.3:a:elastic:elasticsearch:*:*:*:*:*:*:*:*
Bitnami elasticsearch< 8.19.8osvUSpkg:bitnami/elasticsearch
Bitnami elasticsearch9.0.0 → 9.1.8osvUSpkg:bitnami/elasticsearch
Bitnami elasticsearch9.2.0 → 9.2.2osvUSpkg:bitnami/elasticsearch
Maven org.elasticsearch.plugin:x-pack-core7.0.0-alpha1 → 8.19.8osvUSpkg:maven/org.elasticsearch.plugin/x-pack-core
Maven org.elasticsearch.plugin:x-pack-core9.0.0-beta1 → 9.1.8osvUSpkg:maven/org.elasticsearch.plugin/x-pack-core
Maven org.elasticsearch.plugin:x-pack-core9.2.0 → 9.2.2osvUSpkg:maven/org.elasticsearch.plugin/x-pack-core

showing 20 of 23

advisories (3)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2025-2841Elasticsearch: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2025-12-14csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in Elasticsearch ausnutzen, um die Authentifizierung zu umgehen und sich als andere Benutzer auszugeben.
GHSA-m9gh-789g-q5pvElasticsearch PKI Realm Authentication Bypass Vulnerability Allows User Impersonation Through Crafted Client Certificates2025-12-15ghsa · osvUS
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.
BIT-elasticsearch-2025-37731Elasticsearch Improper Authentication2025-12-18vendor · osvUS
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.

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd osv cert_bund nvd NVD CVE.org MITRE

published 2025-12-15modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

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