What is CVE-2026-8450?

CVE-2026-8450 is a critical-severity vulnerability in Oalders Http::daemon, classified under External Control of File Name or Path. CVSS score: 9.1/10. Published 2026-05-27.

How severe is CVE-2026-8450?

Critical severity. CVSS v3 base score is 9.1 out of 10.

RCE in Oalders Http::daemon

CVE-2026-8450

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 subproce…

EPSS: 0.002 (46.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.

Affected products

Oalders Http::daemon — versions 0

Weakness classification (CWE)

References

9b29abf9-4ab0-4765-b253-1875cd9b441e (issue-tracking)
9b29abf9-4ab0-4765-b253-1875cd9b441e (patch)
9b29abf9-4ab0-4765-b253-1875cd9b441e (release-notes)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-8450?: CVE-2026-8450 is a critical-severity vulnerability in Oalders Http::daemon, classified under External Control of File Name or Path. CVSS score: 9.1/10. Published 2026-05-27.
How severe is CVE-2026-8450?: Critical severity. CVSS v3 base score is 9.1 out of 10.