Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-6993— go-kratos http.DefaultServeMux Fallback server.go NewServer confused deputy

Quick assessment

Affected
go-kratos kratos
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.

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。

CVSS 5.3 · Medium EPSS 0.54% · P43

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-6993

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
go-kratos http.DefaultServeMux Fallback server.go NewServer confused deputy
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
未有动机的代理或中间人(混淆代理)
Source: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
go-kratos kratos 2.9.0 -

II. Public POCs for CVE-2026-6993

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-6993

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-6993 (3)

Other References for CVE-2026-6993 (1)

IV. Related Vulnerabilities

Same product: kratos
Same weakness: CWE-441

V. Comments for CVE-2026-6993

No comments yet

Leave a comment