Uncontrolled Resource Consumption in Elasticsearch Leading to denial of service

Uncontrolled Resource Consumption (CWE-400) in Elasticsearch can lead denial of service via Excessive Allocation (CAPEC-130)

Problem type

CWE-400 Uncontrolled Resource Consumption

Affected products

Elastic

Elasticsearch

<= 8.19.21 - AFFECTED

<= 9.4.6 - AFFECTED

<= 9.5.3 - AFFECTED

References

discuss.elastic.co

https://discuss.elastic.co/t/elasticsearch-8-19-22-9-4-7-9-5-4-security-update-esa-2026-183/390687

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-94397

Click to expand

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    "assignerShortName": "elastic",
    "dateUpdated": "2026-09-26T20:42:25.311Z",
    "dateReserved": "2026-09-21T13:29:41.420Z",
    "datePublished": "2026-09-26T20:42:25.311Z",
    "state": "PUBLISHED"
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  "containers": {
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