CVE-2026-56146 Improper Access Control in Kibana Leading to Unauthorized Data Modification and Information Disclosure
Low-privileged users can modify watchlist configurations and access unauthorized data in Kibana under specific deployment conditions.
- 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-2026-56146?
CVE-2026-56146 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
Improper Access Control (CWE-284) in Kibana can lead to unauthorized modification of Entity Analytics Watchlist configuration and potential information disclosure. A low-privileged authenticated user with read-only Security Solution access could perform write operations on watchlist data that should require elevated privileges. Under specific deployment conditions, this could also allow such a user to access data beyond their authorized scope.
Weakness: CWE-863
Which versions are affected by CVE-2026-56146?
2 open source packages ship an affected version, including kibana and elk. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
kibana Bitnami | From 9.4.0 | 9.4.3 |
elk Bitnami | From 9.4.0 | 9.4.3 |
Products include Elastic Kibana.
How do I fix CVE-2026-56146?
Upgrade kibana to 9.4.3 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-56146 being exploited?
There is no known exploitation of CVE-2026-56146 in the wild and no public exploit code.
Other vulnerabilities in Elastic Kibana
Sources
Also known as BIT-elk-2026-56146, BIT-kibana-2026-56146, GHSA-qmwg-877r-54mc, MINI-mfxf-m8jr-5fg3.