CVE-2026-53487 Kite has an authenticated cluster RBAC bypass in /api/v1/overview
Authenticated users can bypass RBAC to view unauthorized cluster inventory and capacity data via the overview API endpoint.
- 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-2026-53487?
CVE-2026-53487 is a medium-severity missing authorization vulnerability in kite-org kite, published on 21 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Kite is a Kubernetes dashboard. Prior to version 0.12.3, authenticated Kite users with any role can request `/api/v1/overview` for a cluster that their roles do not permit by selecting that cluster with `x-cluster-name`. The overview route is registered before `middleware.RBACMiddleware()` and `GetOverview` only checks `len(user.Roles) > 0`, so it returns aggregate Kubernetes inventory and capacity data from unauthorized clusters. Version 0.12.3 fixes the issue.
Weakness: CWE-862
Which versions are affected by CVE-2026-53487?
3 open source packages ship an affected version, including github.com/zxh326/kite.
| Package | Affected | Fixed in |
|---|---|---|
github.com/zxh326/kite Go | All versions | 0.12.3 |
github.com/zxh326/kite Go | All versions | 0.12.3 |
github.com/zxh326/kite Go | All versions | 0.12.3 |
How do I fix CVE-2026-53487?
Upgrade github.com/zxh326/kite to 0.12.3 or later.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-53487 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-53487 exists.
Sources
Also known as GHSA-gvhc-wv3v-7pf8, GO-2026-5941.