CVE-2026-115817

Starman versions before 0.4019 for Perl allow a stalled request body to hold a worker indefinitely, as read timeout covers only the headers.

Content-Length and chunked request bodies are read with blocking reads and no deadline. A client that sends complete headers and then stalls or trickles the body keeps the worker waiting until it disconnects.

A remote attacker can take every worker with a few such connections, five with the default worker count, so the server stops answering requests.

Version 0.4019 applies read timeout to each wait for body data and adds a body timeout limit, 300 seconds by default, on the total time to read a body.