{"cve":"CVE-2022-23652","nvd":{"published":"2022-02-22T20:15:07.763","modified":"2026-06-17T04:30:34.173","status":"Modified","description":"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.","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:H","score":8.8},"cwes":["CWE-287"],"references":["https://github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8","https://github.com/clastix/capsule-proxy/issues/188","https://github.com/clastix/capsule-proxy/security/advisories/GHSA-9cwv-cppx-mqjm","https://github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8","https://github.com/clastix/capsule-proxy/issues/188"],"products":["clastix:capsule-proxy"],"source":"nvd","synced_at":"2026-10-19T21:28:04.509275555+00:00"},"epss":{"cve":"CVE-2022-23652","score":0.01397,"percentile":0.72433,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-9cwv-cppx-mqjm","url":"https://osv.dev/vulnerability/GHSA-9cwv-cppx-mqjm","summary":"Improper Authentication in Capsule Proxy","modified":"2024-08-21T14:56:38.322893Z","packages":[{"ecosystem":"Go","name":"github.com/clastix/capsule-proxy","purl":"pkg:golang/github.com/clastix/capsule-proxy","ranges":["<0.2.1"],"fixed":["0.2.1"]}]},{"id":"GO-2022-0329","url":"https://osv.dev/vulnerability/GO-2022-0329","summary":"Improper Authentication in Capsule Proxy in github.com/clastix/capsule-proxy","modified":"2026-03-03T04:50:06.342480Z","packages":[{"ecosystem":"Go","name":"github.com/clastix/capsule-proxy","purl":"pkg:golang/github.com/clastix/capsule-proxy","ranges":["<0.2.1"],"fixed":["0.2.1"]}]}],"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."]}