CVE-2026-45726
highOmni manages Kubernetes on bare metal, virtual machines, or in a cloud.
Omni manages Kubernetes on bare metal, virtual machines, or in a cloud. From 1.3.0 until 1.6.6 and 1.7.3, importing a standalone Talos cluster creates an ImportedClusterSecrets resource containing the cluster's complete CA secrets bundle. The access rules in internal/backend/runtime/omni/state_access.go allow an authenticated user with the Reader role to retrieve the resource through ResourceService if the importing actor has not rotated those secrets, exposing Kubernetes, Talos, and etcd CA private keys plus the service-account key. The Kubernetes CA private key permits certificate signing for privileged identities such as system:masters and provides control of the imported cluster outside Omni's authorization boundary, including its workloads, credentials, and secrets. This issue is fixed in versions 1.6.6 and 1.7.3.
CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/siderolabs/omni/commit/25fa9e141ee00285e70210ed40d11e4e457c871d security-advisories@github.com
- https://github.com/siderolabs/omni/commit/a224cb020f3aaca2bc21c3e32a38eb4a37e531e8 security-advisories@github.com
- https://github.com/siderolabs/omni/commit/b8ca100c4539ea83f0ac2e53dcd523e6e5b68111 security-advisories@github.com
- https://github.com/siderolabs/omni/pull/2807 security-advisories@github.com
- https://github.com/siderolabs/omni/releases/tag/v1.6.6 security-advisories@github.com
- https://github.com/siderolabs/omni/releases/tag/v1.7.3 security-advisories@github.com
- https://github.com/siderolabs/omni/security/advisories/GHSA-wv8c-6mx2-xf4j security-advisories@github.com