{"cve":"CVE-2026-45726","nvd":{"published":"2026-09-17T20:16:49.650","modified":"2026-09-24T21:25:27.050","status":"Deferred","description":"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_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:A/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H","score":7.6},"cwes":["CWE-200","CWE-522","CWE-732"],"references":["https://github.com/siderolabs/omni/commit/25fa9e141ee00285e70210ed40d11e4e457c871d","https://github.com/siderolabs/omni/commit/a224cb020f3aaca2bc21c3e32a38eb4a37e531e8","https://github.com/siderolabs/omni/commit/b8ca100c4539ea83f0ac2e53dcd523e6e5b68111","https://github.com/siderolabs/omni/pull/2807","https://github.com/siderolabs/omni/releases/tag/v1.6.6"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:55:23.253742848+00:00"},"epss":{"cve":"CVE-2026-45726","score":0.00139,"percentile":0.03292,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-wv8c-6mx2-xf4j","url":"https://osv.dev/vulnerability/GHSA-wv8c-6mx2-xf4j","summary":"Omni: Reader-level users can retrieve imported cluster CA keys via ResourceService","modified":"2026-06-25T23:11:14.495265999Z","packages":[{"ecosystem":"Go","name":"github.com/siderolabs/omni","purl":"pkg:golang/github.com/siderolabs/omni","ranges":[">=1.3.0 <1.6.6"],"fixed":["1.6.6"]},{"ecosystem":"Go","name":"github.com/siderolabs/omni","purl":"pkg:golang/github.com/siderolabs/omni","ranges":[">=1.7.0 <1.7.3"],"fixed":["1.7.3"]}]},{"id":"GO-2026-5725","url":"https://osv.dev/vulnerability/GO-2026-5725","summary":"Omni: Reader-level users can retrieve imported cluster CA keys via ResourceService in github.com/siderolabs/omni","modified":"2026-06-25T23:01:40.034527158Z","packages":[{"ecosystem":"Go","name":"github.com/siderolabs/omni","purl":"pkg:golang/github.com/siderolabs/omni","ranges":[">=1.3.0 <1.6.6",">=1.7.0 <1.7.3"],"fixed":["1.6.6","1.7.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}