{"schema":"threatline.record/2","record":{"id":"CVE-2026-100707","aliases":["GHSA-c5qq-7g2q-cpqp"],"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.","categories":["Unclassified"],"product":"kyverno","vendor":"kyverno","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100707","source_modified_at":"2026-09-28T17:41:14.708Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"kyverno","vendor":"kyverno","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"1.19.1"},{"version":"1.19.1","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-100707","source_modified_at":"2026-09-28T17:41:14.708Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"kyverno","ecosystem":null},"version":"1.19.1","basis":"first unaffected version stated in the CVE record"}],"cvss":8.3,"severity":"High","kev":{"listed":false},"epss":{"probability":0.0046,"percentile":0.38974,"score_date":"2026-10-23"},"published_at":"2026-09-26T13:24:01.414Z","modified_at":"2026-09-28T17:41:14.708Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-100707","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-09-28T17:41:14.708Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-100707","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-c5qq-7g2q-cpqp","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/kyverno-before-1.19.1-namespace-isolation-bypass-via-percent-encoded-path","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-09-28T17:40:59.702394Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-09-28T17:41:14.708Z","content_hash":"0543a7eeb0aba927b319723ecf878fbb8e94d81b01424380f6f2663e9968c70c"}}