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Vulnerability record · CVE-2026-4480 · published 26 May 2026

CVE-2026-4480: Redhat openshift container platform os command injection vulnerability

Redhat · Openshift Container Platform

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.

9.0 CVSS 3.1 Critical EPSS 4.3% · top 9.2% CWE-78 · OS command injection
9.0CVSS 3.1 base score
4.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
28References
1 Sep 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:22644
https://access.redhat.com/errata/RHSA-2026:22963
https://access.redhat.com/errata/RHSA-2026:25049
https://access.redhat.com/errata/RHSA-2026:25979
https://access.redhat.com/errata/RHSA-2026:28053
https://access.redhat.com/errata/RHSA-2026:28054
https://access.redhat.com/errata/RHSA-2026:28055
https://access.redhat.com/errata/RHSA-2026:28056
https://access.redhat.com/errata/RHSA-2026:28057
https://access.redhat.com/errata/RHSA-2026:28058
https://access.redhat.com/errata/RHSA-2026:28132
https://access.redhat.com/security/cve/CVE-2026-4480 MitigationThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2452232 Issue TrackingThird Party Advisory
https://bugzilla.samba.org/show_bug.cgi?id=16033 Issue TrackingVendor Advisory
https://access.redhat.com/errata/RHSA-2026:22644
https://access.redhat.com/errata/RHSA-2026:22963
https://access.redhat.com/errata/RHSA-2026:25049
https://access.redhat.com/errata/RHSA-2026:25979
https://access.redhat.com/errata/RHSA-2026:28053
https://access.redhat.com/errata/RHSA-2026:28054
https://access.redhat.com/errata/RHSA-2026:28055
https://access.redhat.com/errata/RHSA-2026:28056
https://access.redhat.com/errata/RHSA-2026:28057
https://access.redhat.com/errata/RHSA-2026:28058
https://access.redhat.com/errata/RHSA-2026:28132
https://access.redhat.com/security/cve/CVE-2026-4480 MitigationThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2452232 Issue TrackingThird Party Advisory
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4480.json

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Source: NIST National Vulnerability Database (record CVE-2026-4480), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.