CVE-2020-5401— Cloud Foundry GoRouter is vulnerable to cache poisoning
Quick assessment
Affected
Cloud Foundry Routing
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.
Cloud Foundry是美国Cloud Foundry基金会的一套开源的平台即服务（PaaS）云计算平台。该产品提供容器调度、持续交付和自动化服务部署等功能。Routing是其中的一个路由组件。 Cloud Foundry Routing Release 0.197.0之前版本中存在安全漏洞。攻击者可通过发送无效的报头利用该漏洞造成合法用户无法访问该软件。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2020-5401
Vulnerability Information
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Vulnerability Title
Cloud Foundry GoRouter is vulnerable to cache poisoning
Source: CVE Program / CVE List V5
Vulnerability Description
Cloud Foundry Routing Release, versions prior to 0.197.0, contains GoRouter, which allows malicious clients to send invalid headers, causing caching layers to reject subsequent legitimate clients trying to access the app.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
返回错误的状态编码
Source: CVE Program / CVE List V5
Vulnerability Title
Cloud Foundry Routing Release 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cloud Foundry是美国Cloud Foundry基金会的一套开源的平台即服务（PaaS）云计算平台。该产品提供容器调度、持续交付和自动化服务部署等功能。Routing是其中的一个路由组件。 Cloud Foundry Routing Release 0.197.0之前版本中存在安全漏洞。攻击者可通过发送无效的报头利用该漏洞造成合法用户无法访问该软件。
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 |
|---|---|---|---|---|
| Cloud Foundry | Routing | unspecified ~ 0.197.0 | - |
|
II. Public POCs for CVE-2020-5401
| # | POC Description | Source Link | Shenlong Link |
|---|
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Security Blog Posts for CVE-2020-5401 (1)
-
https://www.cloudfoundry.org/blog/cve-2020-5401 x_refsource_CONFIRM
Same Patch Batch · Cloud Foundry · 2020-02-27 · 3 CVEs total
| CVE-2020-5400 | Cloud Controller logs environment variables from app manifests | |
| CVE-2020-5402 | UAA fails to check the state parameter when authenticating with external IDPs |
IV. Related Vulnerabilities
Same product: Routing
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CVE-2023-34041
CVE-2023-34041-Abuse of HTTP Hop-by-Hop Headers in Cloud Fou -
CVE-2020-5420
Gorouter is vulnerable to DoS attack via invalid HTTP respon -
CVE-2020-5416
CF clusters with NGINX in front of them may be vulnerable to -
CVE-2019-11289
A forged route service request using an invalid nonce can ca -
CVE-2018-1070
routing 安全漏洞
Same vendor: Cloud Foundry
-
CVE-2026-41012
BOSH vSphere CPI Improper Cert Validation -
CVE-2026-59335
Case-Sensitive Authorization Check Bypass via Identity Zone -
CVE-2026-41005
UAA accepts SAML Encrypted Assertions authentication bypass -
CVE-2026-22734
Cloud Foundry UAA SAML 2.0 Signature Bypass -
CVE-2025-22246
CVE-2025-22246 – UAA Private Key Exposure
V. Comments for CVE-2020-5401
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