CVE-2026-72647

EUVD-2026-58283
Uncontrolled Recursion (CWE-674) in Elasticsearch can lead to denial of service via Serialized Data with Nested Payloads (CAPEC-230). An authenticated user holding only read privileges on a single index can submit one specially crafted search request whose deeply nested structure is processed without a depth limit, exhausting the thread stack and terminating the affected node.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
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: 33.82%
Affected Products (NVD)
VendorProductVersion
elasticelasticsearch
8.0.0 ≤
𝑥
< 8.19.20
elasticelasticsearch
9.0.0 ≤
𝑥
< 9.4.5
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://discuss.elastic.co/t/elasticsearch-8-19-20-9-4-5-9-5-1-security-update-esa-2026-118/389497