CVE-2026-63260
Uncontrolled Resource Consumption in Kibana Leading to Denial of Service
CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-400 |
| Vendor | elastic |
| Product | kibana |
| Published | Jul 21, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Affected Versions
Elastic / Kibana
9.0.0 ≤ 9.3.7 8.0.0 ≤ 8.19.18 9.4.0 ≤ 9.4.3