CVE-2025-29904
Quick assessment
Affected
JetBrains Ktor
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.
JetBrains Ktor是捷克JetBrains公司的一款用 Kotlin 构建异步服务器与客户端的 Web 框架。用于创建微服务、Web 应用等，构建 RESTful API。 JetBrains Ktor 3.1.1之前版本存在环境问题漏洞，该漏洞源于可能发生HTTP请求夹带攻击。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2025-29904
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
In JetBrains Ktor before 3.1.1 an HTTP Request Smuggling was possible
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: CVE Program / CVE List V5
Vulnerability Title
JetBrains Ktor 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
JetBrains Ktor是捷克JetBrains公司的一款用 Kotlin 构建异步服务器与客户端的 Web 框架。用于创建微服务、Web 应用等，构建 RESTful API。 JetBrains Ktor 3.1.1之前版本存在环境问题漏洞，该漏洞源于可能发生HTTP请求夹带攻击。
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-2025-29904
| # | POC Description | Source Link | Shenlong Link |
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Vendor Pages for CVE-2025-29904 (1)
IV. Related Vulnerabilities
Same weakness: CWE-444
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V. Comments for CVE-2025-29904
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