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.

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Fixes

Solution

Upgrade to Starman 0.4019 or later.


Workaround

No workaround given by the vendor.

History

Sun, 25 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
Description 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.
Title Starman versions before 0.4019 for Perl allow a stalled request body to hold a worker indefinitely, as read_timeout covers only the headers
Weaknesses CWE-770
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published:

Updated: 2026-10-25T16:50:33.914Z

Reserved: 2026-10-23T16:22:27.039Z

Link: CVE-2026-115817

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-25T17:17:00.940

Modified: 2026-10-25T17:17:00.940

Link: CVE-2026-115817

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses