OS Command Injection Affecting samba-winbind-modules package, versions <0:4.10.16-24.amzn2.0.7


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
13.93% (97th percentile)

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  • Snyk IDSNYK-AMZN2-SAMBAWINBINDMODULES-17883848
  • published8 Jul 2026
  • disclosed26 May 2026

Introduced: 26 May 2026

CVE-2026-4480  (opens in a new tab)
CWE-78  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 samba-winbind-modules to version 0:4.10.16-24.amzn2.0.7 or higher.
This issue was patched in ALAS2-2026-3493.

NVD Description

Note: Versions mentioned in the description apply only to the upstream samba-winbind-modules package and not the samba-winbind-modules package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1