CVE-2026-103005

EUVD-2026-93935
Memory Allocation with Excessive Size Value (CWE-789) in Elasticsearch can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with connector management privileges could cause the cluster to allocate an uncontrolled amount of memory when connector resources with an excessively large `description` field are created and subsequently accessed, exhausting available heap memory and crashing the affected node.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
elasticCNA
6.5 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
elasticelasticsearch
8.12.0 ≤
𝑥
≤ 8.19.22
CNA
elasticelasticsearch
9.0.0 ≤
𝑥
≤ 9.3.8
CNA
elasticelasticsearch
9.4.0 ≤
𝑥
≤ 9.4.7
CNA
elasticelasticsearch
9.5.0 ≤
𝑥
≤ 9.5.4
CNA
Common Weakness Enumeration
References
https://discuss.elastic.co/t/elasticsearch-8-19-23-9-4-8-9-5-5-security-update-esa-2026-195/390869