---
id: CVE-2026-45726
title: 'Omni manages Kubernetes on bare metal, virtual machines, or in a cloud'
summary: >-
  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…
severity: high
cvss: 7.6
cvssVector: 'CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H'
cwe:
  - CWE-200
  - CWE-522
  - CWE-732
vendor: siderolabs
product: omni
affected:
  - 'omni >= 1.3.0, < 1.6.6'
published: '2026-09-17'
updated: '2026-09-21'
sourceUpdated: '2026-09-21T21:17:03.190'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-45726'
references:
  - url: >-
      https://github.com/siderolabs/omni/commit/25fa9e141ee00285e70210ed40d11e4e457c871d
    label: security-advisories@github.com
  - url: >-
      https://github.com/siderolabs/omni/commit/a224cb020f3aaca2bc21c3e32a38eb4a37e531e8
    label: security-advisories@github.com
  - url: >-
      https://github.com/siderolabs/omni/commit/b8ca100c4539ea83f0ac2e53dcd523e6e5b68111
    label: security-advisories@github.com
  - url: 'https://github.com/siderolabs/omni/pull/2807'
    label: security-advisories@github.com
  - url: 'https://github.com/siderolabs/omni/releases/tag/v1.6.6'
    label: security-advisories@github.com
  - url: 'https://github.com/siderolabs/omni/releases/tag/v1.7.3'
    label: security-advisories@github.com
  - url: 'https://github.com/siderolabs/omni/security/advisories/GHSA-wv8c-6mx2-xf4j'
    label: security-advisories@github.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-09-21T21:09:02.322777Z'
epss: 0.00099
epssPercentile: 0.00922
ingestedAt: '2026-09-17T20:28:02.771Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.