{"id":"BIT-nginx-ingress-controller-2020-8553","summary":"Kubernetes ingress-nginx Compromise of auth via subset/superset namespace names","details":"The Kubernetes ingress-nginx component prior to version 0.28.0 allows a user with the ability to create namespaces and to read and create ingress objects to overwrite the password file of another ingress which uses nginx.ingress.kubernetes.io/auth-type: basic and which has a hyphenated namespace or secret name.","modified":"2026-05-20T08:11:53.553564279Z","published":"2024-03-06T10:59:40.598Z","withdrawn":"2026-05-20T08:00:04.531821058Z","database_specific":{"cpes":["cpe:2.3:a:kubernetes:ingress-nginx:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://github.com/kubernetes/ingress-nginx/issues/5126"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8553"}],"affected":[{"package":{"name":"nginx-ingress-controller","ecosystem":"Bitnami","purl":"pkg:bitnami/nginx-ingress-controller"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.28.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/nginx-ingress-controller/BIT-nginx-ingress-controller-2020-8553.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N"}]}],"schema_version":"1.7.3"}