{"id":"CVE-2026-100707","revision":"1d72a52f1be04455ba33e92129d93a76","records":[{"revision":"1d72a52f1be04455ba33e92129d93a76","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-100707","aliases":[],"title":"Kyverno before 1.19.1 Namespace Isolation Bypass via Percent-Encoded Path","description":"Kyverno before 1.19.1 contains a namespace isolation bypass in the apiCall context entry of namespaced Policy resources due to inconsistent path interpretation between validation and execution. A low-privilege tenant can use percent-encoded dot-segments in urlPath to bypass namespace checks and read resources from other namespaces using the Kyverno admission controller's ServiceAccount credentials.","state":0,"publishedAt":"2026-09-26T13:24:01.414+00:00","modifiedAt":"2026-09-28T17:41:14.708+00:00","affected":[{"ecosystem":"Vendor product","name":"kyverno","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"kyverno\",\n                    \"product\": \"kyverno\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"packageURL\": \"pkg:golang/github.com/kyverno/kyverno\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\",\n                            \"lessThan\": \"1.19.1\"\n                        },\n                        {\n                            \"version\": \"1.19.1\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N","score":8.3,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N","score":7.7,"severity":"HIGH"}],"references":["https://github.com/kyverno/kyverno/security/advisories/GHSA-c5qq-7g2q-cpqp","https://www.vulncheck.com/advisories/kyverno-before-1.19.1-namespace-isolation-bypass-via-percent-encoded-path"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-100707","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-100707","identifiers":["CVE-2026-100707"]},"retained":false,"historicalAffected":[]}],"coverage":[]}