Security Advisories (1)
CVE-2026-40560 (2026-04-28)

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.

Changes for version 0.3001 - 2012-06-25

  • Fix SERVER_NAME and SERVER_PORT not exist on UNIX socket mode #24
  • Improved documentation
  • Ensure that chunk buffer contains terminating HTTP newline (Peter Makholm)

Documentation

Starman launcher

Modules

Plack adapter for Starman
High-performance preforking PSGI/Plack web server

Provides

in lib/HTTP/Server/PSGI/Net/Server/PreFork.pm
in lib/Starman/Server.pm