CVE-2026-4480

A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description string to the command configured with the "print command" setting via the "%J" substitution character without escaping shell meta characters. A remote attacker could exploit this vulnerability by sending a specially crafted print job description that contains unescaped shell characters. This could lead to remote code execution on the affected system.

Affected products

Linuxmint, Rocky Linux, Samba, Ubuntu

Redhat Openshift Container Platform

= 4.0

Samba

< 4.2.1

Redhat Enterprise Linux

= 7.0, 8.0, 9.0, 10.0

Fix

Available

CVSS 3.1

9.8 CRITICAL

EPSS

13.9% (96th percentile)

Weakness

CWE-78

NVD status

Modified

Published

2026-05-26