CPANSA-Starlet-2026-115865: Starlet vulnerability

Publisher giterlizzi Document category csaf_security_advisory
Initial release date 2026-10-30T00:00:00 Engine CSAF Perl Toolkit 0.26
Current release date 2026-10-30T00:00:00 Build Date
Current version 1 Status final
CVSS v3.1 Base Score Severity
Original language Language en
Also referred to

Vulnerability 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.

Vulnerabilities

CVE-2026-115865

Vulnerability 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.

Weakness CWE-789 : Memory Allocation with Excessive Size Value

Product status

Known affected
Product Score
Starlet less than 0.33
CVSS Version CVSS Vector CVSS Base Score CVSS Base Severity
Fixed

giterlizzi

Namespace: https://github.com/giterlizzi/

gdt@cpan.org

References

Revision history

Version Date of the revision Summary of the revision
1 Fri Oct 30 00:00:00 2026 First release

Sharing rules

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