CVE-2026-89060

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Source
https://cve.org/CVERecord?id=CVE-2026-89060
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89060.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-89060
Published
2026-09-11T04:22:47Z
Modified
2026-10-28T02:31:01Z
Severity
  • 7.7 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
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.

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",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "range": [
                        {
                            "fixed": "1789126264"
                        },
                        {
                            "fixed": "1789126262"
                        },
                        {
                            "fixed": "1789126262"
                        },
                        {
                            "fixed": "1789126267"
                        },
                        {
                            "fixed": "1789126264"
                        }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "InverseAffectedRanges"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/stolostron/multicluster-observability-addon

Affected ranges

Type
GIT
Repo
https://github.com/stolostron/multicluster-observability-addon
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ad36a3ba9fd946c04de71621e47486f7aa2634fd
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "0"
                },
                {
                    "fixed": "ad36a3ba9fd946c04de71621e47486f7aa2634fd"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "ChangesAt"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89060.json"