{"id":"CVE-2020-8553","aliases":["GHSA-hhpm-74pm-hf35"],"title":"ingress-nginx component for Kubernetes allows file overwrite","summary":"ingress-nginx component for Kubernetes allows file overwrite","severity":"medium","cvss":5.9,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N","vendor":"ingress-nginx","product":"k8s.io/ingress-nginx","ecosystem":"go","affected":["k8s.io/ingress-nginx < 0.28.0"],"patched":["k8s.io/ingress-nginx 0.28.0"],"published":"2022-05-24","updated":"2026-08-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/GHSA-hhpm-74pm-hf35","references":[{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-8553"},{"url":"https://github.com/kubernetes/ingress-nginx/issues/5126"},{"url":"https://github.com/kubernetes/ingress-nginx"}],"tags":["osv","go"],"epss":0.00894,"epssPercentile":0.57455,"ingestedAt":"2026-08-07T19:14:17.224Z","slug":"CVE-2020-8553","body":"## Overview\n\nThe 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.\n\n## Affected packages\n\n- `k8s.io/ingress-nginx < 0.28.0`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `k8s.io/ingress-nginx 0.28.0`","depth":"sunlit","depthScore":33,"depthScoreParts":{"impact":32.5,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}