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Elasticsearch 8.19.21, 9.4.6, 9.5.3 Security Update (ESA-2026-170)

🗓️ 25 Sep 2026 08:33:09Reported by ElasticCoType 
elastic
 elastic
🔗 discuss.elastic.co👁 6 Views

Uncontrolled resource consumption in Elasticsearch 8.0.0-8.19.20, 9.0.0-9.5.2 causes DoS.

Related
Detection
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-82294
25 Sep 202613:40
–circl
cve
CVE
CVE-2026-82294
25 Sep 202608:33
–cve
Vulners
Node
OR
elasticelasticsearchRange8.x: All versions from 8.0.0–8.19.20
elasticelasticsearchRangeAll versions from 9.0.0–9.4.5
elasticelasticsearchRangeAll versions from 9.5.0–9.5.2

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25 Sep 2026 08:53Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.16.5
6