{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-40868","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-04-15T15:57:41.718Z","datePublished":"2026-04-21T18:22:01.502Z","dateUpdated":"2026-04-22T13:35:50.296Z"},"containers":{"cna":{"title":"kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token","problemTypes":[{"descriptions":[{"cweId":"CWE-922","lang":"en","description":"CWE-922: Insecure Storage of Sensitive Information","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":8.1,"baseSeverity":"HIGH","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"}}],"references":[{"name":"https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp","tags":["x_refsource_CONFIRM"],"url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp"}],"affected":[{"vendor":"kyverno","product":"kyverno","versions":[{"version":"< 1.16.4","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-04-21T18:22:01.502Z"},"descriptions":[{"lang":"en","value":"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."}],"source":{"advisory":"GHSA-q93q-v844-jrqp","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-22T13:34:55.762312Z","id":"CVE-2026-40868","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-22T13:35:50.296Z"}}]}}