Description
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
redhat: openshift container platform; samba: samba; redhat: enterprise linux
References10
- bugzilla.samba.org/show_bug.cgi?id=16033 Issue TrackingVendor Advisory
- access.redhat.com/errata/RHSA-2026:22644
- access.redhat.com/errata/RHSA-2026:22963
- access.redhat.com/errata/RHSA-2026:25049
- access.redhat.com/errata/RHSA-2026:25979
- access.redhat.com/errata/RHSA-2026:28053
- access.redhat.com/errata/RHSA-2026:28054
- access.redhat.com/errata/RHSA-2026:28055
- access.redhat.com/errata/RHSA-2026:28056
- access.redhat.com/errata/RHSA-2026:28057
Metrics
- CVSS 3.1
-
9.0
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H - EPSS — exploit probability
- 29% percentile: 98 · as of 14 November 2026
- CWE
- CWE-78
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.