Starlet versions before 0.33 for Perl allow a request declaring a large Content-Length to kill a worker by exhausting memory. The request body is read in a loop that asks sysread for all of the remaining declared length at once. Perl grows the read buffer to that size before any data arrives, so a length larger than available memory makes the worker exit with an uncatchable out of memory error before the application is called. A remote attacker can force a worker restart with each request of a few bytes.
History

Sat, 07 Nov 2026 07:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 04 Nov 2026 00:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-770
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Important


Fri, 30 Oct 2026 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Kazuho
Kazuho starlet
Vendors & Products Kazuho
Kazuho starlet

Fri, 30 Oct 2026 13:00:00 +0000

Type Values Removed Values Added
Description Starlet versions before 0.33 for Perl allow a request declaring a large Content-Length to kill a worker by exhausting memory. The request body is read in a loop that asks sysread for all of the remaining declared length at once. Perl grows the read buffer to that size before any data arrives, so a length larger than available memory makes the worker exit with an uncatchable out of memory error before the application is called. A remote attacker can force a worker restart with each request of a few bytes.
Title Starlet versions before 0.33 for Perl allow a request declaring a large Content-Length to kill a worker by exhausting memory
Weaknesses CWE-789
References

cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published: 2026-10-30T12:44:06.034Z

Updated: 2026-11-06T16:42:32.074Z

Reserved: 2026-10-23T17:37:33.627Z

Link: CVE-2026-115865

cve-icon Vulnrichment

Updated: 2026-11-06T16:42:25.385Z

cve-icon NVD

Status : Deferred

Published: 2026-10-30T13:18:30.947

Modified: 2026-11-06T17:17:13.790

Link: CVE-2026-115865

cve-icon Redhat

Severity : Important

Publid Date: 2026-10-30T12:44:06Z

Links: CVE-2026-115865 - Bugzilla