CVE-2026-122308

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{"bugzilla": {"description": "github.com/kyverno/kyverno: Kyverno: Information disclosure via internal label spoofing", "id": "2567625", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2567625"}, "csaw": false, "cvss3": {"cvss3_base_score": "8.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N", "status": "draft"}, "cwe": "CWE-807", "details": ["Kyverno before 1.19.2 contains an authorization bypass vulnerability in the Generation Handler that allows users with create/update permissions to trigger synchronized generate policies by spoofing internal generate.kyverno.io labels. Attackers can label a ConfigMap as managed-by kyverno with crafted policy, rule, and trigger labels to clone sensitive Secrets from restricted namespaces into their own namespace.", "A flaw was found in Kyverno. An authorization bypass vulnerability in the Generation Handler allows authenticated users with resource creation or update privileges to trigger automated generation policies by spoofing internal system labels. By applying crafted labels to resources such as configuration maps, an attacker can clone sensitive secrets from restricted namespaces into their own namespace, resulting in unauthorized information disclosure."], "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-2026-122308", "public_date": "2026-11-05T02:25:11Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-122308\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-122308\nhttps://github.com/kyverno/kyverno/security/advisories/GHSA-hg5v-hwm3-956r\nhttps://www.vulncheck.com/advisories/kyverno-before-1.19.2-label-spoofing-via-generation-handler-processrequest"], "statement": "This vulnerability is rated Important because an authenticated cluster user with restricted privileges can bypass multi-tenancy boundaries and extract sensitive data across namespaces. In environments running Kyverno where synchronized generation rules are deployed, users who only possess permissions to create or modify local resources can spoof internal metadata tags. Consequently, the controller mistakenly propagates protected assets into unauthorized namespaces, breaking container platform tenant isolation.", "threat_severity": "Important"}

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