CVE-2026-49090
Uncontrolled Resource Consumption in Elasticsearch Leading to Denial of Service
6.5
MEDIUM
CVSS 3.1
EPSS 0.25%
Description
Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted bulk request that causes sustained high CPU consumption, which can render the affected node unable to process requests.
How to fix CVE-2026-49090
To remediate CVE-2026-49090, upgrade the affected package to a fixed version below.
- —upgrade to 7.17.24 or later
Is CVE-2026-49090 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 7.0.0, < 7.17.24, >= 8.0.0, < 8.15.0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |