CVE-2026-0530 Allocation of Resources Without Limits or Throttling in Kibana Leading to Excessive Allocation
Attackers can cause service degradation or unavailability in Kibana Fleet by sending specially crafted requests that trigger excessive resource allocation.
- 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-2026-0530?
CVE-2026-0530 is a medium-severity denial of service vulnerability in Elastic Kibana, published on 13 Jan 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 Fleet can lead to Excessive Allocation (CAPEC-130) via a specially crafted request. This causes the application to perform redundant processing operations that continuously consume system resources until service degradation or complete unavailability occurs.
Weakness: CWE-770
Which versions are affected by CVE-2026-0530?
2 open source packages ship an affected version, including kibana and elk. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
kibana Bitnami | All versions | 8.19.10, 9.1.10, 9.2.4 |
elk Bitnami | All versions | 8.19.10, 9.1.10, 9.2.4 |
Products include Elastic Kibana.
How do I fix CVE-2026-0530?
Upgrade kibana to a fixed version for your release line: 8.19.10, 9.1.10 or 9.2.4.
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-2026-0530 being exploited?
There is no known exploitation of CVE-2026-0530 in the wild and no public exploit code.
Other vulnerabilities in Elastic Kibana
Sources
Also known as BIT-elk-2026-0530, BIT-kibana-2026-0530, GHSA-fwvg-47gh-ppm7, MINI-4cvj-99gg-x4fx, MINI-5h5q-mq8w-qwv3, MINI-cfcp-p5xj-wpg6 and 3 more.