Allocation of Resources Without Limits or Throttling in Kibana - CVE-2026-72667
Published: August 13, 2026
Vulnerability identifier: #VU142341
CSH Severity: Low
CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-72667
CWE-ID: CWE-770
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to cause a denial of service.
The vulnerability exists due to allocation of resources without limits or throttling in the Observability log analysis validation capability when handling a specially crafted request. A remote user can send a specially crafted request to cause a denial of service.
A single request can trigger unbounded concurrent work and exhaust memory in the Kibana process, making the service unavailable until it is restarted.
Affected software
Kibana
How to mitigate CVE-2026-72667
Install security update from vendor's website.
Kibana - addressed in versions 8.19.20, 9.4.5