HTTP::Daemon versions before 6.17 for Perl allow OS command injection via send_file(). send_file() opens its string argument with Perl's 2-arg open(). The 2-arg form interprets magic prefixes: '| cmd' and 'cmd |' open a pipe to a subprocess, '> path' and '>> path' open the path for write or append. Untrusted input passed to send_file() can run OS commands at the daemon process UID. The read-pipe form ('cmd |') also leaks subprocess stdout into the HTTP response body. The write-mode forms can create or truncate files at attacker chosen paths.
History

Wed, 27 May 2026 10:30:00 +0000

Type Values Removed Values Added
First Time appeared Oalders
Oalders http::daemon
Vendors & Products Oalders
Oalders http::daemon

Wed, 27 May 2026 08:30:00 +0000

Type Values Removed Values Added
References

Wed, 27 May 2026 05:00:00 +0000

Type Values Removed Values Added
Description HTTP::Daemon versions before 6.17 for Perl allow OS command injection via send_file(). send_file() opens its string argument with Perl's 2-arg open(). The 2-arg form interprets magic prefixes: '| cmd' and 'cmd |' open a pipe to a subprocess, '> path' and '>> path' open the path for write or append. Untrusted input passed to send_file() can run OS commands at the daemon process UID. The read-pipe form ('cmd |') also leaks subprocess stdout into the HTTP response body. The write-mode forms can create or truncate files at attacker chosen paths.
Title HTTP::Daemon versions before 6.17 for Perl allow OS command injection via send_file()
Weaknesses CWE-73
CWE-78
References

cve-icon MITRE

Status: PUBLISHED

Assigner: CPANSec

Published:

Updated: 2026-05-27T07:24:59.662Z

Reserved: 2026-05-12T21:26:04.212Z

Link: CVE-2026-8450

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-27T05:16:23.067

Modified: 2026-05-27T08:16:45.440

Link: CVE-2026-8450

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-27T10:07:54Z