{"id":"CVE-2026-40868","summary":"kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token","details":"Kyverno is a policy engine designed for cloud native platform engineering teams. Prior to 1.16.4, kyverno’s apiCall servicecall helper implicitly injects Authorization: Bearer ... using the kyverno controller serviceaccount token when a policy does not explicitly set an Authorization header. Because context.apiCall.service.url is policy-controlled, this can send the kyverno serviceaccount token to an attacker-controlled endpoint (confused deputy). Namespaced policies are blocked from servicecall usage by the namespaced urlPath gate in pkg/engine/apicall/apiCall.go, so this report is scoped to ClusterPolicy and global context usage. This vulnerability is fixed in 1.16.4.","aliases":["BIT-kyverno-2026-40868","GHSA-q93q-v844-jrqp"],"modified":"2026-05-28T03:53:44.881597189Z","published":"2026-04-21T18:22:01.502Z","related":["CGA-wmfv-jhv9-jfcp"],"database_specific":{"cna_assigner":"GitHub_M","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40868.json","cwe_ids":["CWE-922"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40868.json"},{"type":"ADVISORY","url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-40868"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/kyverno/kyverno","events":[{"introduced":"0"},{"fixed":"ead0a548e9b0e8746c6175abb53f8edff0aa5f1e"}]}],"versions":["v1.16.4-rc.1","kyverno-policies-chart-3.6.4-rc.1","kyverno-chart-3.6.4-rc.1","v1.16.3","kyverno-policies-chart-3.6.3","kyverno-chart-3.6.3","v1.16.3-rc.1","kyverno-policies-chart-3.6.3-rc.1","kyverno-chart-3.6.3-rc.1","v1.16.2","kyverno-policies-chart-3.6.2","kyverno-chart-3.6.2","v1.16.2-rc.1","kyverno-policies-chart-3.6.2-rc.1","kyverno-chart-3.6.2-rc.1","v1.16.1","kyverno-policies-chart-3.6.1","kyverno-chart-3.6.1","v1.16.1-rc.2","kyverno-policies-chart-3.6.1-rc.2","kyverno-chart-3.6.1-rc.2","v1.16.1-rc.1","kyverno-policies-chart-3.6.1-rc.1","kyverno-chart-3.6.1-rc.1","v1.16.0","kyverno-policies-chart-3.6.0","kyverno-chart-3.6.0","v1.16.0-rc.2","kyverno-policies-chart-3.6.0-rc.2","kyverno-chart-3.6.0-rc.2","v1.16.0-rc.1","kyverno-policies-chart-3.6.0-rc.1","kyverno-chart-3.6.0-rc.1","1.9-dev","1.8-dev","1.7-dev","test-dev","1.6-dev","helm-chart-v2.1.3","v1.5.0-rc1","helm-chart-v2.1.0","v1.4.3","helm-chart-v2.0.3","v1.4.3-rc2","helm-chart-v2.0.3-rc2","v1.4.3-rc1","helm-chart-v2.0.3-rc1","v1.4.2","v1.4.2-rc4","v1.4.2-rc3","v1.4.2-rc2","v1.4.2-rc1","v1.4.1","v1.4.0-rc4","v1.4.0","v1.4.0-rc3","v1.4.0-rc2","v1.4.0-rc1","v1.3.6","v1.3.6-rc5","v1.3.6-rc4","v1.3.6-rc3","v1.3.6-rc2","v1.3.6-rc1","v1.3.5","v1.3.5-rc5","v1.3.5-rc4","v1.3.5-rc3","v1.3.5-rc2","v1.3.5-rc1","v1.3.4","v1.3.4-rc1","v1.3.3","v1.3.2","v1.3.2-rc3","v1.3.2-rc2","v1.3.2-rc1","v1.3.1","v1.3.0","v1.3.0-rc12","v1.3.0-rc11","v1.3.0-rc10","1.3.0-rc10","v1.3.0-rc9","v1.3.0-rc8","v1.3.0-rc7","v1.3.0-rc6","v1.3.0-rc5","v1.3.0-rc4","v1.3.0-rc3","v1.3.0-rc2","v1.3.0-rc1","v1.2.1","v1.2.0","v1.1.12","v1.1.11","v1.1.10","v1.1.9","v1.1.8","v1.1.7","v1.1.7-rc4","v1.1.7-rc3","v1.1.7-rc2","v1.1.7-rc1","v1.1.6","v1.1.6-rc5","v1.1.6-rc4","v1.1.6-rc3","v1.1.6-rc2","v1.1.6-rc1","v1.1.5","v1.1.4","v1.1.4-rc1","v1.1.3","v1.1.3-rc1","v1.1.2","v1.1.1","v1.0.0","v1.0.0-rc1","v0.11.0","v0.10.0","v0.9.1","v0.9.0","v0.8.0","v0.7.1","v0.7.0","v0.5.0","v0.4.0","v0.3.0","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-40868.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N"}]}