{"cve":"CVE-2026-29773","nvd":{"published":"2026-03-10T17:39:03.210","modified":"2026-06-17T10:29:51.563","status":"Analyzed","description":"Kubewarden is a policy engine for Kubernetes. Kubewarden cluster operators can grant permissions to users to deploy namespaced AdmissionPolicies and AdmissionPolicyGroups in their Namespaces. One of Kubewarden promises is that configured users can deploy namespaced policies in a safe manner, without privilege escalation. An attacker with privileged \"AdmissionPolicy\" create permissions (which isn't the default) could make use of 3 deprecated host-callback APIs: kubernetes/ingresses, kubernetes/namespaces, kubernetes/services. The attacker can craft a policy that exercises these deprecated API calls and would allow them read access to Ingresses, Namespaces, and Services resources respectively. \nThis attack is read-only, there is no write capability and no access to Secrets, ConfigMaps, or other resource types beyond these three.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3},"cwes":["CWE-863"],"references":["https://github.com/kubewarden/kubewarden-controller/commit/4e41b60ae44902d82d94101bac93fb77cae65651","https://github.com/kubewarden/kubewarden-controller/pull/1519","https://github.com/kubewarden/kubewarden-controller/security/advisories/GHSA-6r7f-3fwq-hq74"],"products":["linuxfoundation:kubewarden"],"source":"nvd","synced_at":"2026-10-19T22:25:53.701907451+00:00"},"epss":{"cve":"CVE-2026-29773","score":0.00196,"percentile":0.09398,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-6r7f-3fwq-hq74","url":"https://osv.dev/vulnerability/GHSA-6r7f-3fwq-hq74","summary":"Kubewarden: Cross-namespace data exfiltration via deprecated host callback binding","modified":"2026-03-23T04:56:18.277286422Z","packages":[{"ecosystem":"Go","name":"github.com/kubewarden/kubewarden-controller","purl":"pkg:golang/github.com/kubewarden/kubewarden-controller","ranges":["<1.33.0"],"fixed":["1.33.0"]}]},{"id":"GO-2026-4652","url":"https://osv.dev/vulnerability/GO-2026-4652","summary":"Kubewarden: Cross-namespace data exfiltration via deprecated host callback binding in github.com/kubewarden/kubewarden-controller","modified":"2026-03-23T04:52:50.144037Z","packages":[{"ecosystem":"Go","name":"github.com/kubewarden/kubewarden-controller","purl":"pkg:golang/github.com/kubewarden/kubewarden-controller","ranges":["<1.33.0"],"fixed":["1.33.0"]}]}],"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."]}