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{"bugzilla": {"description": "console: console: potential XSS via dangerouslySetInnerHTML with unescaped resource name in getCodeSpan", "id": "2509504", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2509504"}, "csaw": false, "cvss3": {"cvss3_base_score": "3.1", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-79", "details": ["Stack-based buffer overflow in Microsoft Office allows an unauthorized attacker to execute code locally.", "A flaw was found in console. The `getCodeSpan` helper in `SharedResourceWarning.js` constructs an HTML string using string concatenation without proper HTML encoding. This unescaped string is then rendered via React's `dangerouslySetInnerHTML`. While current Kubernetes DNS-1123 name validation prevents immediate exploitation, any future relaxation of this validation or an alternative data source could enable stored Cross-Site Scripting (XSS) in the hub console. This could allow an attacker to inject malicious scripts into web pages viewed by other users."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2026-66807", "package_state": [{"cpe": "cpe:/a:redhat:multicluster_engine", "fix_state": "Fix deferred", "package_name": "multicluster-engine/console-mce-rhel9", "product_name": "Multicluster Engine for Kubernetes"}, {"cpe": "cpe:/a:redhat:acm:2", "fix_state": "Fix deferred", "package_name": "rhacm2/console-rhel9", "product_name": "Red Hat Advanced Cluster Management for Kubernetes 2"}], "public_date": "2026-08-14T17:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-66807\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-66807\nhttps://issues.redhat.com/browse/ACM-38694"], "statement": "This vulnerability is rated as Low impact because Kubernetes DNS-1123 name validation currently prevents the injection of HTML metacharacters, making it not exploitable in Red Hat products today. However, this represents a latent Cross-Site Scripting (XSS) risk in the console that could become exploitable if upstream data source validation is relaxed.", "threat_severity": "Low"}