CVE-2026-53487: Kite has an authenticated cluster RBAC bypass in /api/v1/overview

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-21 · updated 2026-10-12
Weakness: CWE-862

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.

Affected products

kite-org kite: before 0.12.3

References

https://github.com/kite-org/kite/security/advisories/GHSA-gvhc-wv3v-7pf8
https://github.com/kite-org/kite/security/advisories/GHSA-gvhc-wv3v-7pf8

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