CVE-2026-45726

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Source
https://cve.org/CVERecord?id=CVE-2026-45726
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45726.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45726
Aliases
Downstream
Related
Published
2026-09-17T19:37:50Z
Modified
2026-09-19T03:45:34Z
Severity
  • 7.6 (High) CVSS_V3 - CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H CVSS Calculator
Summary
Omni: Reader-level users can retrieve imported cluster CA keys via ResourceService
Details

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.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-200",
        "CWE-522",
        "CWE-732"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45726.json"
}
References

Affected packages

Git / github.com/siderolabs/omni

Affected ranges

Type
GIT
Repo
https://github.com/siderolabs/omni
Events
Introduced
3a47a7ee29231c8c004bb0d42aa6bc28a39bf382
Fixed
25fa9e141ee00285e70210ed40d11e4e457c871d
Fixed
a224cb020f3aaca2bc21c3e32a38eb4a37e531e8
Fixed
b8ca100c4539ea83f0ac2e53dcd523e6e5b68111
Fixed
9769f9442e302e000401e351ffd6d6fb3671a5bf
Fixed
e70a16e4a226aa2f98643dbed6664edc1a5e90e7
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "1.3.0"
        },
        {
            "fixed": "1.6.6"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45726.json"