CVE-2026-6993— go-kratos http.DefaultServeMux Fallback server.go NewServer confused deputy
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I. Basic Information for CVE-2026-6993
Vulnerability Information
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Vulnerability Title
go-kratos http.DefaultServeMux Fallback server.go NewServer confused deputy
Source: NVD (National Vulnerability Database)
Vulnerability Description
A security flaw has been discovered in go-kratos kratos up to 2.9.2. This impacts the function NewServer of the file transport/http/server.go of the component http.DefaultServeMux Fallback Handler. The manipulation results in unintended intermediary. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks. The patch is identified as 0284a5bcf92b5a7ee015300ce3051baf7ae4718d. Applying a patch is advised to resolve this issue.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
未有动机的代理或中间人(混淆代理)
Source: NVD (National Vulnerability Database)
Vulnerability Title
kratos 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kratos是Yanhu个人开发者的一款基于Go语言的微服务治理框架。 kratos 2.9.2及之前版本存在安全漏洞，该漏洞源于组件http.DefaultServeMux Fallback Handler中文件transport/http/server.go的函数NewServer，可能导致非预期中介。
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
II. Public POCs for CVE-2026-6993
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IV. Related Vulnerabilities
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