CVE-2026-63260 PUBLISHED

Uncontrolled Resource Consumption in Kibana Leading to Denial of Service

Assigner: elastic
Reserved: 16.07.2026 Published: 21.07.2026 Updated: 22.07.2026

Uncontrolled Resource Consumption (CWE-400) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated attacker with low-privilege access can trigger a denial of service condition in Kibana by sending a specially crafted, oversized request payload. Processing this user-supplied input requires resource-intensive memory allocation that can exhaust the available heap memory in the Kibana process, causing it to crash and become unavailable to all users.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS Score: 6.5

Product Status

Vendor Elastic
Product Kibana
Versions Default: unaffected
  • affected from 9.0.0 to 9.3.7 (incl.)
  • affected from 8.0.0 to 8.19.18 (incl.)
  • affected from 9.4.0 to 9.4.3 (incl.)

References

Problem Types

  • CWE-400 Uncontrolled Resource Consumption CWE

Impacts

  • CAPEC-130 Excessive Allocation