CVE-2026-40560— Starman versions before 0.4018 for Perl allows HTTP Request Smuggling via Improper Header Precedence
Get alerts for future matching vulnerabilitiesLog in to subscribe
I. Basic Information for CVE-2026-40560
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View Shenlong Deep Dive ↗ Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
Starman versions before 0.4018 for Perl allows HTTP Request Smuggling via Improper Header Precedence
Source: NVD (National Vulnerability Database)
Vulnerability Description
Starman versions before 0.4018 for Perl allows HTTP Request Smuggling via Improper Header Precedence. Starman incorrectly prioritizes "Content-Length" over "Transfer-Encoding: chunked" when both headers are present in an HTTP request. Per RFC 7230 3.3.3, Transfer-Encoding must take precedence. An attacker could exploit this to smuggle malicious HTTP requests via a front-end reverse proxy.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
HTTP请求的解释不一致性(HTTP请求私运)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Starman 环境问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Starman是Tatsuhiko Miyagawa个人开发者的一款高性能预派生Web服务器。 Starman 0.4018之前版本存在环境问题漏洞，该漏洞源于HTTP请求夹带技术，由于标头优先级处理不当，Starman在HTTP请求中同时存在Content-Length和Transfer-Encoding: chunked标头时错误地优先处理Content-Length，可能导致攻击者通过前端反向代理夹带恶意HTTP请求。
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-2026-40560
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POCPremium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-40560
请登录查看更多情报信息。
IV. Related Vulnerabilities
Same vendor: MIYAGAWA
Same weakness: CWE-444
- CVE-2026-40562
Gazelle versions through 0.49 for Perl allows HTTP Request S - CVE-2026-40561
Starlet versions through 0.31 for Perl allows HTTP Request S - CVE-2026-39805
CL.CL HTTP request smuggling via duplicate Content-Length in - CVE-2026-41873
Pony Mail: Admin account takeover via request smuggling - CVE-2026-2708
Libsoup: libsoup: http request smuggling via duplicate conte
V. Comments for CVE-2026-40560
No comments yet