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Elasticsearch 9.4.8, 9.5.5 Security Update (ESA-2026-190)

🗓️ 06 Oct 2026 18:41:32Reported by ElasticCoType 
elastic
 elastic
🔗 discuss.elastic.co👁 22 Views

Authenticated low-privileged users can cause DoS in Elasticsearch via uncontrolled recursion.

Related
Detection
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-102409
7 Oct 202613:55
–circl
cve
CVE
CVE-2026-102409
6 Oct 202619:31
–cve
cvelist
Cvelist
CVE-2026-102409 Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
6 Oct 202619:31
–cvelist
nessus
Tenable Nessus
Elasticsearch 9.2.x / 9.2.8 / 9.3.x / 9.3.8 / 9.4.x < 9.4.8 / 9.5.x < 9.5.5 DoS (ESA-2026-190)
9 Oct 202600:00
–nessus
euvd
EUVD
EUVD-2026-93930
6 Oct 202619:31
–euvd
mend
Mend
CVE-2026-102409
6 Oct 202619:31
–mend
nvd
NVD
CVE-2026-102409
6 Oct 202620:17
–nvd
osv_bit
osv_bit
BIT-ELASTICSEARCH-2026-102409 Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
14 Oct 202608:40
–osv_bit
osv_cga
osv_cga
CGA-2PRM-8V33-35QP
13 Oct 202623:58
–osv_cga
osv_cga
osv_cga
CGA-5884-4VGF-7R9R
13 Oct 202623:51
–osv_cga
Rows per page
Vulners
Node
OR
elasticelasticsearchRange9.2.0–9.2.8
elasticelasticsearchRange9.3.0–9.3.8
elasticelasticsearchRange9.4.0–9.4.7
elasticelasticsearchRange9.5.0–9.5.4

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06 Oct 2026 18:41Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.16.5
EPSS0.00309
SSVC
22