7.4

CVE-2025-37731: elastic elasticsearch Improper Authentication

CVSS: 7.4v3.1HighAnalyzed
AliasesUBUNTU-CVE-2025-37731CGA-53vq-h8jr-wpq6CGA-7536-w4pm-gqr6
Published 15-12-2025Last modified 26-02-2026
Open JSON

Vulnerability summary

CVE-2025-37731 is a high (CVSS 7.4) Improper Authentication vulnerability in elastic elasticsearch. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.2% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.4/10
010
High · v3.1 (NVD)
EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 0 · Related 1
CGA-3PR3-P5VW-W8W8

Timeline

  1. 15-12-2025
    PublishedVulnerability first disclosed.
  2. 26-02-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

6 scores · 6 sources · 1 version

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

0.00 pp

From 0.19% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.19%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard30 products
  • camunda-8.8< 8.8.39-r1
  • camunda-zeebe-8.6< 8.6.39-r13
  • camunda-zeebe-8.7< 8.7.41-r1
  • camunda-zeebe-8.8< 8.8.39-r1
  • commercial-elasticsearch-8.17< 8.17.10-r2 | All versions (No fix recorded)
Wolfi7 products
  • ruby3.2-elasticsearchAll versions (No fix recorded)
  • ruby3.3-elasticsearchAll versions (No fix recorded)
  • ruby3.4-elasticsearchAll versions (No fix recorded)
  • ruby4.0-elasticsearch< 9.3.0-r0
  • sonarqube< 25.12.0.117093-r1
Org.elasticsearch.plugin2 products
  • x-pack-core≥ 7.0.0-alpha1, < 8.19.8 | ≥ 9.0.0-beta1, < 9.1.8 | ≥ 9.2.0, < 9.2.2
  • x-pack-security≥ 7.0.0-alpha1, < 8.19.8 | ≥ 9.0.0-beta1, < 9.1.8 | ≥ 9.2.0, < 9.2.2
Elastic1 product
  • elasticsearch≥ 8.0.0, ≤ 8.19.7 | ≥ 9.0.0, ≤ 9.1.7 | ≥ 9.2.0, ≤ 9.2.1 | ≥ 7.0.0, ≤ 7.17.29 | ≥ 8.0.0, < 8.19.8 | ≥ 9.0.0, < 9.1.8 | ≥ 9.2.0, < 9.2.2
Ubuntu1 product
  • elasticsearchAll versions (No fix recorded)

5 vendors · 41 products

References

9 links