CVE-2026-56147 Missing authorization in Kibana
Low-privileged users can bypass authorization checks to read, modify, or delete protected case attachments in Kibana.
- 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-2026-56147?
CVE-2026-56147 is a high-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
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized information disclosure and case attachment integrity compromise via Privilege Abuse (CAPEC-122). An inconsistency in Kibana's file access authorization logic allows a low-privileged authenticated user to retrieve, modify, and delete case attachments that belong to feature areas they are not authorized to access. Because the access control check and the resource retrieval use different resolution mechanisms, an authenticated attacker with limited file management permissions can obtain the contents of, modify, or delete protected case attachments — such as those associated with Security Solution cases — without holding the privileges required to access those features.
Weakness: CWE-639
Which versions are affected by CVE-2026-56147?
2 open source packages ship an affected version, including kibana and elk. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
kibana Bitnami | From 8.7.0 | 8.19.18, 9.3.7, 9.4.3 |
elk Bitnami | From 8.7.0 | 8.19.18, 9.3.7, 9.4.3 |
Products include Elastic Kibana.
How do I fix CVE-2026-56147?
Upgrade kibana to a fixed version for your release line: 8.19.18, 9.3.7 or 9.4.3.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-56147 being exploited?
There is no known exploitation of CVE-2026-56147 in the wild and no public exploit code.
Other vulnerabilities in Elastic Kibana
Sources
Also known as BIT-elk-2026-56147, BIT-kibana-2026-56147, GHSA-83mc-f7wh-6hxj, MINI-3gqq-q7p5-qcfm, MINI-762h-h224-357p, MINI-7q5j-5wp5-6j6q and 4 more.