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{"affected": [{"affectedData": [{"collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": ["cpe:/a:redhat:acm:2"], "defaultStatus": "affected", "packageName": "rhacm2/multicluster-operators-channel-rhel9", "product": "Red Hat Advanced Cluster Management for Kubernetes 2", "vendor": "Red Hat"}], "source": "secalert@redhat.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A flaw was found in the multicloud-operators-channel component. This vulnerability allows a user with specific permissions to manipulate how the system handles sensitive information, known as Secrets, across different parts of the system (namespaces). By exploiting this, an attacker can modify these Secrets in unauthorized areas. This could lead to unauthorized access to information or elevated privileges within the system."}], "id": "CVE-2026-64927", "lastModified": "2026-08-12T02:16:37.780", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.4, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 2.7, "source": "secalert@redhat.com", "type": "Primary"}]}, "published": "2026-08-12T02:16:37.780", "references": [{"source": "secalert@redhat.com", "url": "https://access.redhat.com/security/cve/CVE-2026-64927"}, {"source": "secalert@redhat.com", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514229"}], "sourceIdentifier": "secalert@redhat.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-639"}], "source": "secalert@redhat.com", "type": "Primary"}]}

{"bugzilla": {"description": "multicloud-operators-channel: multicloud-operators-channel: cross-namespace Secret and ConfigMap mutation via spec.secretRef.namespace confused deputy", "id": "2514229", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2514229"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-639", "details": ["A flaw was found in the multicloud-operators-channel component. This vulnerability allows a user with specific permissions to manipulate how the system handles sensitive information, known as Secrets, across different parts of the system (namespaces). By exploiting this, an attacker can modify these Secrets in unauthorized areas. This could lead to unauthorized access to information or elevated privileges within the system."], "mitigation": {"lang": "en:us", "value": "Restrict the creation of `Channel` resources to trusted administrators within Red Hat Advanced Cluster Management. This limits the attack surface by preventing unauthorized tenants from exploiting the confused deputy vulnerability in the `multicloud-operators-channel` component."}, "name": "CVE-2026-64927", "package_state": [{"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Affected", "package_name": "rhacm2/multicluster-operators-channel-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}], "public_date": "2026-08-11T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64927\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64927"], "statement": "Moderate: A confused deputy flaw in the multicloud-operators-channel component of Red Hat Advanced Cluster Management allows a tenant with Channel create permissions to modify Secrets in arbitrary namespaces. This enables cross-namespace Secret mutation and backup-scope expansion, indicating a privilege escalation within the cluster.", "threat_severity": "Moderate"}

{}