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CVE-2020-8553
Kubernetes ingress-nginx Compromise of auth via subset/superset namespace names
Medium5.9EPSS 0.89%
- Published
- Updated
- Reserved
- Assigned by
- kubernetes
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| kubernetesCNA (assigner) | 3.1 | Medium5.9 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N |
| NVDNVD · Modified | 3.1 | Medium5.9 | CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N |
- EPSS (exploitation in 30 days)
- 0.89% · top 40% of all CVEs (5 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.9.
Weakness
Affected products
- affected unspecified – < 0.28.0
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gok8s.io/ingress-nginxGHSA-hhpm-74pm-hf35 (opens in a new tab)
References (1)
- https://github.com/kubernetes/ingress-nginx/issues/5126 (opens in a new tab)x_refsource_CONFIRMx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-hhpm-74pm-hf35 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2020-8553)Record last updated .