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CVE-2026-42400 Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

🗓️ 28 May 2026 19:42:11Reported by elasticType 
cvelist
 cvelist
🔗 www.cve.org👁 56 Views

Authenticated users can crash Kibana with a crafted compressed payload that consumes memory before authorization.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2026-42400
28 May 202619:42
–attackerkb
bdu_fstec
BDU FSTEC
Kibana Preprocessing DoS
25 Sep 202600:00
–bdu_fstec
circl
Circl
CVE-2026-42400
29 May 202614:45
–circl
cnnvd
CNNVD
Elastic Kibana 安全漏洞
28 May 202600:00
–cnnvd
cve
CVE
CVE-2026-42400
28 May 202619:42
–cve
elastic
Elastic
Kibana 8.19.16, 9.3.5, 9.4.2 Security Update (ESA-2026-35)
28 May 202619:25
–elastic
euvd
EUVD
EUVD-2026-33030
28 May 202619:42
–euvd
nessus
Tenable Nessus
Kibana 8.x < 8.19.16 / 9.0.x < 9.3.5 / 9.4.x < 9.4.2 Multiple Vulnerabilities (ESA-2026-35 / ESA-2026-38)
4 Jun 202600:00
–nessus
mend
Mend
CVE-2026-42400
28 May 202619:42
–mend
nvd
NVD
CVE-2026-42400
28 May 202621:16
–nvd
Rows per page
[
  {
    "defaultStatus": "unaffected",
    "product": "Kibana",
    "vendor": "Elastic",
    "versions": [
      {
        "lessThanOrEqual": "9.4.1",
        "status": "affected",
        "version": "9.4.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "9.3.4",
        "status": "affected",
        "version": "9.0.0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "8.19.15",
        "status": "affected",
        "version": "8.0.0",
        "versionType": "semver"
      }
    ]
  }
]

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