vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2025-37731

Elasticsearch Improper Authentication

HIGH
7.4
CVSS Score
Published: December 15, 2025 at 10:42 AM UTC
Updated: October 7, 2026 at 07:10 PM UTC
1 product affected across 1 vendorElasticsearch

Using Elasticsearch by Elastic?

Get instant alerts when new vulnerabilities affect Elasticsearch - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Elasticsearch· Elasticelastic-plugin
95%
7.0.0 ≤ v ≤ 7.17.298.0.0 ≤ v ≤ 8.19.78.0.0 ≤ v < 8.19.89.0.0 ≤ v ≤ 9.1.79.0.0 ≤ v < 9.1.89.2.0 ≤ v ≤ 9.2.19.2.0 ≤ v < 9.2.27.0.08.0.09.0.09.2.0
Affected range stops below 8.19.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.1.8, so it looks safe — our inference, not a vendor statement
Affected range stops below 9.2.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

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

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.4HIGH[email protected]
Attack Vector
NETWORK
Complexity
HIGH
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-287NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card