{"id":"BIT-kyverno-2026-100707","summary":"Kyverno before 1.19.1 Namespace Isolation Bypass via Percent-Encoded Path","details":"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.","aliases":["CVE-2026-100707","GHSA-c5qq-7g2q-cpqp"],"modified":"2026-10-01T10:11:14.485214765Z","published":"2026-10-01T09:26:28.672Z","database_specific":{"cpes":["cpe:2.3:a:kyverno:kyverno:*:*:*:*:*:go:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-c5qq-7g2q-cpqp"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100707"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/kyverno-before-1.19.1-namespace-isolation-bypass-via-percent-encoded-path"}],"affected":[{"package":{"name":"kyverno","ecosystem":"Bitnami","purl":"pkg:bitnami/kyverno"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.19.1"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/kyverno/BIT-kyverno-2026-100707.json"},"severity":[{"type":"CVSS_V4","score":"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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}],"schema_version":"1.9.0"}