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CVE-2026-63260

MEDIUM
6.5
CVSS 3.1
Description
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.

Metadata

CVE ID
CVE-2026-63260
State
PUBLISHED
Assigner
elastic
Reserved
2026-07-16 03:26 UTC
Published
2026-07-21 22:53 UTC
Last updated
2026-07-22 13:08 UTC
Primary CWE
CWE-400
CWE-400 Uncontrolled Resource Consumption
Vendor / Product
Elastic / Kibana
Sources
cve.org  ·  NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
no
Tech. Impact
partial
Affected products (1)
VendorProductPlatformVersions
Elastic Kibana — 9.0.0 ≤ 9.3.7, 8.0.0 ≤ 8.19.18, 9.4.0 ≤ 9.4.3
Weakness (CWE)
CWESourceDescription
CWE-400 cna CWE-400 Uncontrolled Resource Consumption
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.5 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References (1)
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