ElasticCVE-2026-42397
Elastic Kibana: denial of service
Medium6.5CVE-2026-42397 · Published Jul 21, 2026 · updated Aug 6, 2026
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to a denial of service via Excessive Allocation (CAPEC-130). An authenticated user can submit a specially crafted request to affected Entity Analytics endpoints containing an oversized input value that causes excessive resource consumption, which may render Kibana unavailable.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Kibana Product | >= 9.4.0, <= 9.4.3 | No fix yet |
| >= 9.3.0, <= 9.3.6 | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-770
More Elastic advisories
All Elastic| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Jul 21 | Elastic Kibana: improper authorization | Medium5.0 | No fix yet |
| Jul 21 | Elastic Kibana: missing authorization | Medium4.3 | No fix yet |
| Jul 21 | Elasticsearch: denial of service | Medium6.5 | No fix yet |
| Jul 21 | Elastic Kibana: improper authorization | Medium4.3 | No fix yet |
| Jul 21 | Elastic Kibana: information disclosure | Medium4.3 | No fix yet |
| Jul 21 | Elastic Kibana: resource exhaustion | Medium6.5 | No fix yet |