CVE-2026-72651 Allocation of Resources Without Limits or Throttling in Kibana Leading to Denial of Service
An authenticated user can cause a denial of service in Kibana by submitting a malformed payload that exhausts system resources.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72651?
CVE-2026-72651 is a medium-severity denial of service vulnerability in Elastic Kibana, published on 13 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Allocation of Resources Without Limits or Throttling (CWE-770) in Kibana can lead to denial of service via Excessive Allocation (CAPEC-130). An authenticated user with read-only privileges to the alerting feature could submit a specially crafted, malformed payload that causes the Kibana process to consume excessive resources. A single request is sufficient to leave Kibana unable to serve requests for all users until the process is restarted.
Weakness: CWE-770
Which versions are affected by CVE-2026-72651?
2 open source packages ship an affected version, including kibana and elk. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
kibana Bitnami | From 8.0.0 | 8.19.20, 9.4.5 |
elk Bitnami | From 8.0.0 | 8.19.20, 9.4.5 |
Products include Elastic Kibana.
How do I fix CVE-2026-72651?
Upgrade kibana to a fixed version for your release line: 8.19.20 or 9.4.5.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-72651 being exploited?
There is no known exploitation of CVE-2026-72651 in the wild and no public exploit code.
Other vulnerabilities in Elastic Kibana
Sources
Also known as BIT-elk-2026-72651, BIT-kibana-2026-72651, GHSA-3fq3-9257-ppm7, MINI-2v86-72x6-9434, MINI-3xmp-vv79-rj3x, MINI-7q23-mj6r-wq6p and 4 more.