CVE-2020-8553— Kubernetes ingress-nginx Compromise of auth via subset/superset namespace names
Quick assessment
Affected
Kubernetes ingress-nginx
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Kubernetes是美国Linux基金会的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。 Kubernetes ingress-nginx 0.28.0之前版本中存在安全漏洞。攻击者可利用该漏洞覆盖密码文件。
Possible ATT&CK Techniques 2 AI
T1530 · Data from Cloud Storage T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2020-8553
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
Kubernetes ingress-nginx Compromise of auth via subset/superset namespace names
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Kubernetes 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kubernetes是美国Linux基金会的一套开源的Docker容器集群管理系统。该系统为容器化的应用提供资源调度、部署运行、服务发现和扩容缩容等功能。 Kubernetes ingress-nginx 0.28.0之前版本中存在安全漏洞。攻击者可利用该漏洞覆盖密码文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Kubernetes | ingress-nginx | unspecified ~ 0.28.0 | - |
|
II. Public POCs for CVE-2020-8553
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2020-8553
请登录查看更多情报信息。
Other References for CVE-2020-8553 (1)
-
https://github.com/kubernetes/ingress-nginx/issues/5126 x_refsource_CONFIRM
IV. Related Vulnerabilities
Same product: ingress-nginx
-
CVE-2026-4342
ingress-nginx comment-based nginx configuration injection -
CVE-2026-3288
ingress-nginx rewrite-target nginx configuration injection -
CVE-2025-15566
ingress-nginx auth-proxy-set-headers nginx configuration inj -
CVE-2026-24514
ingress-nginx Admission Controller denial of service -
CVE-2026-24513
ingress-nginx auth-url protection bypass
Same vendor: Kubernetes
-
CVE-2026-19444
Kubernetes kubectl cp path traversal on Windows allows arbit -
CVE-2026-15687
Path traversal via non-tar copyDirectoryFromPod -
CVE-2026-3864
CSI Driver for NFS path traversal via subDir may delete unin -
CVE-2026-4342
ingress-nginx comment-based nginx configuration injection -
CVE-2026-3288
ingress-nginx rewrite-target nginx configuration injection
Same weakness: CWE-73
-
CVE-2026-71453
Johnson Controls EasyIO FS32 (<3.0b63) 路径遍历漏洞 -
CVE-2026-103255
n8n before 1.123.80, 2.39.6, and 2.40.1 Path Traversal and Q -
CVE-2026-15983
Super Forms <= 6.3.316 - Authenticated (Subscriber+) Arbitra -
CVE-2026-103591
DeepWiki-Open through commit d92819a Unauthenticated Arbitra -
CVE-2026-102141
Kiteworks Core Privilege Escalation through External Control
V. Comments for CVE-2020-8553
No comments yet