kazuho/Starlet

kazuho/Starlet

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Releases27
Frequency7 months 2 weeks
Last Release
Stars71
a Plack Server, formerly known as Plack::Server::Standalone::Prefork::Server::Starter
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CVE History

CVEPublishedCVSS v3CVSS v2
CVE-2026-40561↗
5.3 MEDIUM—

Starlet versions through 0.31 for Perl allows HTTP Request Smuggling via Improper Header Precedence. Starlet 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.