CVE-2026-102407

EUVD-2026-93928
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
elasticCNA
5.4 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
elasticelasticsearch
7.17.5 ≤
𝑥
≤ 7.17.29
CNA
elasticelasticsearch
8.2.2 ≤
𝑥
≤ 8.19.18
CNA
elasticelasticsearch
9.0.0 ≤
𝑥
≤ 9.3.7
CNA
elasticelasticsearch
9.4.0 ≤
𝑥
≤ 9.4.3
CNA