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.
References
- www.cve.org/CVERecord ↗
- nvd.nist.gov/vuln/detail/CVE-2026-4480 ↗
- 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 ↗
- access.redhat.com/errata/RHSA-2026:28058 ↗
- access.redhat.com/errata/RHSA-2026:28132 ↗
- access.redhat.com/security/cve/CVE-2026-4480 ↗
- bugzilla.redhat.com/show_bug.cgi ↗
- bugzilla.samba.org/show_bug.cgi ↗
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4480.json ↗
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This product uses the NVD API but is not endorsed or certified by the NVD. CVSS scores do not establish exploitation.