{"cve":"CVE-2021-20218","nvd":{"published":"2021-03-16T21:15:10.930","modified":"2026-06-17T03:33:29.460","status":"Modified","description":"A flaw was found in the fabric8 kubernetes-client in version 4.2.0 and after. This flaw allows a malicious pod/container to cause applications using the fabric8 kubernetes-client `copy` command to extract files outside the working path. The highest threat from this vulnerability is to integrity and system availability. This has been fixed in kubernetes-client-4.13.2 kubernetes-client-5.0.2 kubernetes-client-4.11.2 kubernetes-client-4.7.2","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H","score":7.4},"cwes":["CWE-22"],"references":["https://bugzilla.redhat.com/show_bug.cgi?id=1923405","https://github.com/fabric8io/kubernetes-client/issues/2715","https://bugzilla.redhat.com/show_bug.cgi?id=1923405","https://github.com/fabric8io/kubernetes-client/issues/2715"],"products":["redhat:a-mq_online","redhat:build_of_quarkus","redhat:codeready_studio","redhat:descision_manager","redhat:integration_camel_k","redhat:jboss_fuse","redhat:kubernetes-client","redhat:openshift_container_platform","redhat:process_automation"],"source":"nvd","synced_at":"2026-10-19T21:15:50.279857260+00:00"},"epss":{"cve":"CVE-2021-20218","score":0.01312,"percentile":0.70676,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-jwh2-ffg4-48xc","url":"https://osv.dev/vulnerability/GHSA-jwh2-ffg4-48xc","summary":"Improper Limitation of a Pathname to a Restricted Directory in Fabric8 Kubernetes Client","modified":"2023-11-08T04:04:35.648855Z","packages":[{"ecosystem":"Maven","name":"io.fabric8:kubernetes-client","purl":"pkg:maven/io.fabric8/kubernetes-client","ranges":[">=4.2.0 <4.7.2"],"fixed":["4.7.2"]},{"ecosystem":"Maven","name":"io.fabric8:kubernetes-client","purl":"pkg:maven/io.fabric8/kubernetes-client","ranges":[">=4.8.0 <4.11.2"],"fixed":["4.11.2"]},{"ecosystem":"Maven","name":"io.fabric8:kubernetes-client","purl":"pkg:maven/io.fabric8/kubernetes-client","ranges":[">=4.12.0 <4.13.2"],"fixed":["4.13.2"]},{"ecosystem":"Maven","name":"io.fabric8:kubernetes-client","purl":"pkg:maven/io.fabric8/kubernetes-client","ranges":[">=5.0.0 <5.0.2"],"fixed":["5.0.2"]}]}],"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."]}