{"cve":"CVE-2026-40868","nvd":{"published":"2026-04-21T19:16:18.420","modified":"2026-06-17T10:45:47.693","status":"Analyzed","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","score":8.1},"cwes":["CWE-922"],"references":["https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp","https://github.com/kyverno/kyverno/security/advisories/GHSA-q93q-v844-jrqp"],"products":["kyverno:kyverno"],"source":"nvd","synced_at":"2026-10-19T22:30:49.762551342+00:00"},"epss":{"cve":"CVE-2026-40868","score":0.00289,"percentile":0.21556,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-q93q-v844-jrqp","url":"https://osv.dev/vulnerability/GHSA-q93q-v844-jrqp","summary":"kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token","modified":"2026-09-10T03:51:02.758669709Z","packages":[{"ecosystem":"Go","name":"github.com/kyverno/kyverno","purl":"pkg:golang/github.com/kyverno/kyverno","ranges":["<1.17.0"],"fixed":["1.17.0"]}]},{"id":"GO-2026-5575","url":"https://osv.dev/vulnerability/GO-2026-5575","summary":"kyverno apicall servicecall implicit bearer token injection leaks kyverno serviceaccount token in github.com/kyverno/kyverno","modified":"2026-06-25T23:11:14.316457880Z","packages":[{"ecosystem":"Go","name":"github.com/kyverno/kyverno","purl":"pkg:golang/github.com/kyverno/kyverno","ranges":["<1.17.0"],"fixed":["1.17.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}