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Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-40560

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.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.0

EPSS Ranking 3.8%

CVSS Severity

CVSS v3 Score 7.5

References

Products affected by CVE-2026-40560

Miyagawa » Starman » Version: 0.1000

cpe:2.3:a:miyagawa:starman:0.1000
Miyagawa » Starman » Version: 0.1001

cpe:2.3:a:miyagawa:starman:0.1001
Miyagawa » Starman » Version: 0.1002

cpe:2.3:a:miyagawa:starman:0.1002
Miyagawa » Starman » Version: 0.1003

cpe:2.3:a:miyagawa:starman:0.1003
Miyagawa » Starman » Version: 0.1004

cpe:2.3:a:miyagawa:starman:0.1004
Miyagawa » Starman » Version: 0.1005

cpe:2.3:a:miyagawa:starman:0.1005
Miyagawa » Starman » Version: 0.1006

cpe:2.3:a:miyagawa:starman:0.1006
Miyagawa » Starman » Version: 0.1007

cpe:2.3:a:miyagawa:starman:0.1007
Miyagawa » Starman » Version: 0.2000

cpe:2.3:a:miyagawa:starman:0.2000
Miyagawa » Starman » Version: 0.2001

cpe:2.3:a:miyagawa:starman:0.2001
Miyagawa » Starman » Version: 0.2002

cpe:2.3:a:miyagawa:starman:0.2002
Miyagawa » Starman » Version: 0.2003

cpe:2.3:a:miyagawa:starman:0.2003
Miyagawa » Starman » Version: 0.2004

cpe:2.3:a:miyagawa:starman:0.2004
Miyagawa » Starman » Version: 0.2005

cpe:2.3:a:miyagawa:starman:0.2005
Miyagawa » Starman » Version: 0.2006

cpe:2.3:a:miyagawa:starman:0.2006
Miyagawa » Starman » Version: 0.2007

cpe:2.3:a:miyagawa:starman:0.2007
Miyagawa » Starman » Version: 0.2008

cpe:2.3:a:miyagawa:starman:0.2008
Miyagawa » Starman » Version: 0.2009

cpe:2.3:a:miyagawa:starman:0.2009
Miyagawa » Starman » Version: 0.2010

cpe:2.3:a:miyagawa:starman:0.2010
Miyagawa » Starman » Version: 0.2011

cpe:2.3:a:miyagawa:starman:0.2011
Miyagawa » Starman » Version: 0.2012

cpe:2.3:a:miyagawa:starman:0.2012
Miyagawa » Starman » Version: 0.2013

cpe:2.3:a:miyagawa:starman:0.2013
Miyagawa » Starman » Version: 0.2014

cpe:2.3:a:miyagawa:starman:0.2014
Miyagawa » Starman » Version: 0.29_90

cpe:2.3:a:miyagawa:starman:0.29_90
Miyagawa » Starman » Version: 0.3000

cpe:2.3:a:miyagawa:starman:0.3000
Miyagawa » Starman » Version: 0.3001

cpe:2.3:a:miyagawa:starman:0.3001
Miyagawa » Starman » Version: 0.3002

cpe:2.3:a:miyagawa:starman:0.3002
Miyagawa » Starman » Version: 0.3003

cpe:2.3:a:miyagawa:starman:0.3003
Miyagawa » Starman » Version: 0.3004

cpe:2.3:a:miyagawa:starman:0.3004
Miyagawa » Starman » Version: 0.3005

cpe:2.3:a:miyagawa:starman:0.3005
Miyagawa » Starman » Version: 0.3006

cpe:2.3:a:miyagawa:starman:0.3006
Miyagawa » Starman » Version: 0.3007

cpe:2.3:a:miyagawa:starman:0.3007
Miyagawa » Starman » Version: 0.3008

cpe:2.3:a:miyagawa:starman:0.3008
Miyagawa » Starman » Version: 0.3009

cpe:2.3:a:miyagawa:starman:0.3009
Miyagawa » Starman » Version: 0.3010

cpe:2.3:a:miyagawa:starman:0.3010
Miyagawa » Starman » Version: 0.3011

cpe:2.3:a:miyagawa:starman:0.3011
Miyagawa » Starman » Version: 0.3012

cpe:2.3:a:miyagawa:starman:0.3012
Miyagawa » Starman » Version: 0.3013

cpe:2.3:a:miyagawa:starman:0.3013
Miyagawa » Starman » Version: 0.3014

cpe:2.3:a:miyagawa:starman:0.3014
Miyagawa » Starman » Version: 0.4000

cpe:2.3:a:miyagawa:starman:0.4000
Miyagawa » Starman » Version: 0.4001

cpe:2.3:a:miyagawa:starman:0.4001
Miyagawa » Starman » Version: 0.4002

cpe:2.3:a:miyagawa:starman:0.4002
Miyagawa » Starman » Version: 0.4003

cpe:2.3:a:miyagawa:starman:0.4003
Miyagawa » Starman » Version: 0.4004

cpe:2.3:a:miyagawa:starman:0.4004
Miyagawa » Starman » Version: 0.4005

cpe:2.3:a:miyagawa:starman:0.4005
Miyagawa » Starman » Version: 0.4006

cpe:2.3:a:miyagawa:starman:0.4006
Miyagawa » Starman » Version: 0.4007

cpe:2.3:a:miyagawa:starman:0.4007
Miyagawa » Starman » Version: 0.4008

cpe:2.3:a:miyagawa:starman:0.4008
Miyagawa » Starman » Version: 0.4009

cpe:2.3:a:miyagawa:starman:0.4009
Miyagawa » Starman » Version: 0.4010

cpe:2.3:a:miyagawa:starman:0.4010
Miyagawa » Starman » Version: 0.4011

cpe:2.3:a:miyagawa:starman:0.4011
Miyagawa » Starman » Version: 0.4012

cpe:2.3:a:miyagawa:starman:0.4012
Miyagawa » Starman » Version: 0.4013

cpe:2.3:a:miyagawa:starman:0.4013
Miyagawa » Starman » Version: 0.4014

cpe:2.3:a:miyagawa:starman:0.4014
Miyagawa » Starman » Version: 0.4015

cpe:2.3:a:miyagawa:starman:0.4015
Miyagawa » Starman » Version: 0.4016

cpe:2.3:a:miyagawa:starman:0.4016
Miyagawa » Starman » Version: 0.4017

cpe:2.3:a:miyagawa:starman:0.4017

Vulnerabilities

Vulnerable Software

Vulnerability Details CVE-2026-40560

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