{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-122309", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-04T23:23:51.290Z", "datePublished": "2026-11-05T02:25:12.280Z", "dateUpdated": "2026-11-05T02:25:12.280Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-05T02:25:12.280Z"}, "datePublic": "2026-10-21T00:00:00.000Z", "title": "Kyverno before 1.19.2 Denial of Service via Unbounded CEL Policy Evaluation Cost", "descriptions": [{"lang": "en", "value": "Kyverno before 1.19.2 contains a denial of service vulnerability that allows namespace-scoped policy authors to exhaust CPU and memory by submitting CEL expressions evaluated without runtime cost limits. Attackers can create a NamespacedValidatingPolicy or NamespacedDeletingPolicy with nested map comprehensions over large ConfigMap fields to OOM-kill Kyverno pods and block cluster-wide admission."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Uncontrolled Resource Consumption", "cweId": "CWE-400", "type": "CWE"}]}], "affected": [{"vendor": "kyverno", "product": "kyverno", "defaultStatus": "unaffected", "packageURL": "pkg:golang/github.com/kyverno/kyverno", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "1.19.2"}, {"version": "1.19.2", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:*:*:*", "versionEndExcluding": "1.19.2"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "HIGH", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "HIGH", "baseScore": 8.2, "baseSeverity": "HIGH"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:N/I:N/A:H", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH", "baseScore": 6.2, "baseSeverity": "MEDIUM"}}], "references": [{"url": "https://github.com/kyverno/kyverno/security/advisories/GHSA-m8p2-qqmx-j53x", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-m8p2-qqmx-j53x)"}, {"name": "VulnCheck Advisory: Kyverno before 1.19.2 Denial of Service via Unbounded CEL Policy Evaluation Cost", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/kyverno-before-1.19.2-denial-of-service-via-unbounded-cel-policy-evaluation-cost"}], "credits": [{"lang": "en", "value": "1diot9", "type": "finder"}], "x_generator": {"engine": "vulncheck-endgame"}}}}

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{}

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