7.1

CVE-2026-78607: elastic elasticsearch Missing Authorization

CVSS: 7.1v3.1HighAnalyzed
Published 01-09-2026Last modified 01-09-2026
Open JSON

Vulnerability summary

CVE-2026-78607 is a high (CVSS 7.1) Missing Authorization vulnerability in elastic elasticsearch. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 24.5% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.33%
0%100%
Low · +0.13 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-09-2026
    PublishedVulnerability first disclosed.
  2. 01-09-2026
    Last modifiedVulnerability information updated.

Description

Missing Authorization (CWE-862) in the Elasticsearch custom inference service can lead to information disclosure via Privilege Abuse (CAPEC-122). A user holding only inference execution privileges could cause outbound inference traffic to be directed to a destination of their choosing and could cause administrator-provisioned credentials to be exposed.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.33%

Chance of exploitation in the next 30 days

Percentile

25%

Versus all other CVEs

30-day change

+0.13 pp

From 0.19% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.33%

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

Elastic1 product
  • elasticsearch≥ 8.0.0, ≤ 8.19.18 | ≥ 9.0.0, ≤ 9.3.7 | ≥ 9.4.0, ≤ 9.4.3 | ≥ 8.0.0, < 8.19.19 | ≥ 9.0.0, < 9.3.8 | ≥ 9.4.0, < 9.4.4 | 9.5.0

1 vendor · 1 product

References

1 links