CVEs / CVE-2026-4480

CVE-2026-4480: redhat openshift container platform vulnerability

critical 9 CVSS 3.1 (from the CNA)
EPSS 28.6% chance of exploitation in the next 30 days, higher than 98% of CVEs (8 Nov 2026)
Last changed at its sources 5 Nov 2026

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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.
The CVE record, via NVD · published 26 May 2026 · NVD status: Modified

Affected and fixed versions

As stated by NVD's CPE configuration
Product	Affected	Fixed in
redhat openshift container platform	4.0	—
samba samba	from 4.1.0, before 4.2.1	4.2.1
redhat enterprise linux	7.0	—
redhat enterprise linux	8.0	—
redhat enterprise linux	9.0	—
redhat enterprise linux	10.0	—

Exploitation

Not in the CISA Known Exploited Vulnerabilities catalog as of 6 Nov 2026.

Severity

CVSS 3.1	9 critical `CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H` Scored by the CNA ([email protected])
Weakness	CWE-78

References

Sources

Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.

This product uses data from the NVD API but is not endorsed or certified by the NVD.