{"id":"CVE-2026-89060","summary":"Stolostron/multicluster-observability-addon: cross-namespace secret disclosure in multicluster-observability-addon via unvalidated configuration references","details":"A cross-namespace authorization flaw in multicluster-observability-addon allows a user with permission to modify a managed cluster’s ManagedClusterAddOn configuration to reference ClusterLogForwarder or OpenTelemetryCollector resources outside the permitted namespace. If those resources reference Secrets, the add-on may copy the referenced Secrets to the attacker-controlled managed cluster.","modified":"2026-10-08T02:53:13.029463501Z","published":"2026-09-11T04:22:47.524Z","database_specific":{"cna_assigner":"redhat","cwe_ids":["CWE-551"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89060.json"},"references":[{"type":"WEB","url":"https://catalog.redhat.com/software/containers/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:67539"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:67540"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:67541"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:67542"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:67543"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-89060"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89060.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89060"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2531596"},{"type":"FIX","url":"https://github.com/stolostron/multicluster-observability-addon/pull/644"},{"type":"PACKAGE","url":"https://github.com/stolostron/multicluster-observability-addon"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/stolostron/multicluster-observability-addon","events":[{"introduced":"0"},{"fixed":"ad36a3ba9fd946c04de71621e47486f7aa2634fd"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89060.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N"}]}