5.4

CVE-2026-102407: elastic elasticsearch Incorrect Authorization

CVSS: 5.4v3.1MediumAnalyzed
AliasesCGA-4f3x-2m5w-c6qgCGA-5w6p-6mrx-7f7w
Published 06-10-2026Last modified 06-10-2026
Open JSON

Vulnerability summary

CVE-2026-102407 is a medium (CVSS 5.4) Incorrect Authorization vulnerability in elastic elasticsearch. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 11.6% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.4/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.22%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-10-2026
    PublishedVulnerability first disclosed.
  2. 06-10-2026
    Last modifiedVulnerability information updated.

Description

Incorrect Authorization (CWE-863) in Elasticsearch can lead to unauthorized data stream modification via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user with sufficient privileges over a single resource could use the Modify Data Streams API to modify a data stream to which they were not otherwise authorized, potentially injecting data into it or affecting its ability to be searched normally. This issue does not allow an attacker to read the contents of a data stream they do not otherwise have access to.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.22%

Chance of exploitation in the next 30 days

Percentile

12%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

07-10-202621-10-2026
EPSS score
0.22%

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

Chainguard1 product
  • elasticsearch-9.2All versions (No fix recorded)
Elastic1 product
  • elasticsearch≥ 8.2.2, ≤ 8.19.18 | ≥ 9.0.0, ≤ 9.3.7 | ≥ 9.4.0, ≤ 9.4.3 | ≥ 7.17.5, ≤ 7.17.29 | ≥ 8.2.2, < 8.19.19 | ≥ 9.0.0, < 9.3.8 | ≥ 9.4.0, < 9.4.4

2 vendors · 2 products

References

1 links