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Elasticsearch 8.19.17, 9.3.6, 9.4.3 Security Update (ESA-2026-42)

🗓️ 01 Jul 2026 13:50:07Reported by ElasticCoType 
elastic
 elastic
🔗 discuss.elastic.co👁 71 Views

Elasticsearch patch for uncontrolled recursion causing denial of service; fixes in eight nineteen seventeen versions.

Related
Detection
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-56148
1 Jul 202616:17
–attackerkb
bdu_fstec
BDU FSTEC
Elasticsearch Uncontrolled Recursion DoS
25 Sep 202600:00
–bdu_fstec
circl
Circl
CVE-2026-56148
2 Jul 202604:37
–circl
cve
CVE
CVE-2026-56148
1 Jul 202616:17
–cve
cvelist
Cvelist
CVE-2026-56148 Uncontrolled Recursion in Elasticsearch Leading to Denial of Service
1 Jul 202616:17
–cvelist
nessus
Tenable Nessus
Elasticsearch 8.0.x < 8.19.17 / 9.0.x < 9.3.6 / 9.4.x < 9.4.3 Multiple DoS
3 Jul 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-56148
2 Jul 202600:00
–nessus
euvd
EUVD
EUVD-2026-41065
1 Jul 202616:17
–euvd
mend
Mend
CVE-2026-56148
1 Jul 202616:17
–mend
nvd
NVD
CVE-2026-56148
1 Jul 202617:16
–nvd
Rows per page
Vulners
Node
OR
elasticelasticsearchRange8.0.0–8.19.16
elasticelasticsearchRange9.0.0–9.4.2
elasticelasticsearchRange9.3–9.3.5

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01 Jul 2026 13:50Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.16.5
EPSS0.00472
SSVC
71