CVE-2026-63143 Missing Authorization in Kibana Leading to Unauthorized Information Disclosure
A user with limited privileges can access unauthorized workflow execution outputs containing sensitive data via the API.
- 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-2026-63143?
CVE-2026-63143 is a medium-severity missing authorization vulnerability in Elastic Kibana, published on 21 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Missing Authorization (CWE-862) in Kibana can lead to unauthorized information disclosure via Privilege Abuse (CAPEC-122). A user with limited feature privileges can access workflow execution outputs in their Kibana space without the authorization required to do so through the documented API. The accessible data may include sensitive information returned by workflow steps, such as results from connected data sources that the caller would not otherwise be authorized to access.
Weakness: CWE-862
Which versions are affected by CVE-2026-63143?
2 open source packages ship an affected version, including kibana and elk. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
kibana Bitnami | From 9.0.0 | 9.3.8, 9.4.4 |
elk Bitnami | From 9.0.0 | 9.3.8, 9.4.4 |
Products include Elastic Kibana.
How do I fix CVE-2026-63143?
Upgrade kibana to a fixed version for your release line: 9.3.8 or 9.4.4.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-63143 being exploited?
There is no known exploitation of CVE-2026-63143 in the wild and no public exploit code.
Other vulnerabilities in Elastic Kibana
Sources
Also known as BIT-elk-2026-63143, BIT-kibana-2026-63143, GHSA-wrjj-v99g-x4f7, MINI-2ph3-28v2-699w, MINI-8589-2mrx-mw2f, MINI-h363-653g-vfrv and 2 more.