CVE-2020-8565— Incomplete fix for CVE-2019-11250 allows for token leak in logs when logLevel >= 9
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I. Basic Information for CVE-2020-8565
Vulnerability Information
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Vulnerability Title
Incomplete fix for CVE-2019-11250 allows for token leak in logs when logLevel >= 9
Source: NVD (National Vulnerability Database)
Vulnerability Description
In Kubernetes, if the logging level is set to at least 9, authorization and bearer tokens will be written to log files. This can occur both in API server logs and client tool output like kubectl. This affects <= v1.19.3, <= v1.18.10, <= v1.17.13, < v1.20.0-alpha2.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
通过日志文件的信息暴露
Source: NVD (National Vulnerability Database)
Vulnerability Title
Kubernetes 日志日志信息泄露漏洞
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存在日志信息泄露漏洞，攻击者可利用该漏洞绕过对数据的访问限制，以获取敏感信息。
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 | Kubernetes | <= 1.19.3 | - |
II. Public POCs for CVE-2020-8565
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|---|
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- https://github.com/kubernetes/kubernetes/issues/95623x_refsource_CONFIRM
- https://groups.google.com/g/kubernetes-security-discuss/c/vm-HcrFUOCs/m/36utxAM5CwAJmailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2020-8565
Same Patch Batch · Kubernetes · 2020-12-07 · 4 CVEs total
| CVE-2020-8566 | 4.7 MEDIUM | Ceph RBD adminSecrets exposed in logs when loglevel >= 4 |
| CVE-2020-8564 | 4.7 MEDIUM | Docker config secrets leaked when file is malformed and loglevel >= 4 |
| CVE-2020-8563 | 4.7 MEDIUM | Secret leaks in logs for vSphere Provider kube-controller-manager |
IV. Related Vulnerabilities
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Incorrect permissions on Windows containers logs - CVE-2024-3177
Bypassing mountable secrets policy imposed by the ServiceAcc
Same vendor: Kubernetes
- 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 - CVE-2025-15566
ingress-nginx auth-proxy-set-headers nginx configuration inj - CVE-2026-24514
ingress-nginx Admission Controller denial of service
Same weakness: CWE-532
- CVE-2026-42282
n8n-MCP: Sensitive MCP tool-call arguments logged on authent - CVE-2026-41495
n8n-MCP Logs Sensitive Request Data on Unauthorized /mcp Req - CVE-2026-41004
VMware Spring Cloud Config 日志信息泄露漏洞 - CVE-2024-30151
HCL BigFix Service Management (SM) is susceptible to Broken - CVE-2026-7824
PaperCut Hive (Ricoh): Plain text password in logs
V. Comments for CVE-2020-8565
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