CVE-2026-115864
Monoceros versions before 0.30 for Perl allow a request declaring a large Content-Length to kill a worker by exhausting memory
Description
Monoceros versions before 0.30 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.
INFO
Published Date :
Nov. 9, 2026, 9:16 p.m.
Last Modified :
Nov. 9, 2026, 9:16 p.m.
Remotely Exploit :
No
Source :
CPANSec
Affected Products
The following products are affected by CVE-2026-115864
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update Monoceros to version 0.30 or later.
- Ensure worker processes are restarted after the update.
- Monitor system resources after applying the update.
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CVE-2026-115864 vulnerability anywhere in the article.