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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-115817
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-25 17:17:00 UTC
Updated2026-10-25 17:17:00 UTC
DescriptionStarman 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.

Risk And Classification

Problem Types: CWE-770 | CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling

References

ReferenceSourceLinkTags
github.com/miyagawa/Starman/commit/89dffd3bdc9baa1cbe1b48a43615586ba2588... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
github.com/miyagawa/Starman/commit/a30533c03051502d6b67cd48b3a95a61e1296... 9b29abf9-4ab0-4765-b253-1875cd9b441e github.com
metacpan.org/release/MIYAGAWA/Starman-0.4019/changes 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: Upgrade to Starman 0.4019 or later.

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