{"id":"CVE-2022-23652","summary":"Privilege escalation using hop-by-hop Connection header","details":"capsule-proxy is a reverse proxy for Capsule Operator which provides multi-tenancy in Kubernetes. In versions prior to 0.2.1 an attacker with a proper authentication mechanism may use a malicious `Connection` header to start a privilege escalation attack towards the Kubernetes API Server. This vulnerability allows for an exploit of the `cluster-admin` Role bound to `capsule-proxy`. There are no known workarounds for this issue.","aliases":["GHSA-9cwv-cppx-mqjm","GO-2022-0329"],"modified":"2026-04-02T07:49:49.338714Z","published":"2022-02-22T19:55:11Z","database_specific":{"cwe_ids":["CWE-287"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23652.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/23xxx/CVE-2022-23652.json"},{"type":"ADVISORY","url":"https://github.com/clastix/capsule-proxy/security/advisories/GHSA-9cwv-cppx-mqjm"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-23652"},{"type":"REPORT","url":"https://github.com/clastix/capsule-proxy/issues/188"},{"type":"FIX","url":"https://github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/clastix/capsule-proxy","events":[{"introduced":"0"},{"fixed":"d85232c51624817909af86825fbc70c32e27be0e"}]}],"versions":["v0.0.1","v0.0.2","v0.0.3","v0.0.4","v0.0.5","v0.1.0","v0.1.1","v0.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-23652.json"}},{"ranges":[{"type":"GIT","repo":"https://github.com/projectcapsule/capsule-proxy","events":[{"introduced":"0"},{"fixed":"efe91f68ebf8a9e3d21491dc57da7b8a746415d8"}]}],"versions":["v0.0.1","v0.0.2","v0.0.3","v0.0.4","v0.0.5","v0.1.0","v0.1.1","v0.2.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-23652.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:H"}]}