CVE-2026-107886 Affecting cups-client package, versions <0:2.4.19-4.5.hum1


Severity

Recommended
0.0
low
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.1% (1st percentile)

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  • Snyk IDSNYK-RHEL10-CUPSCLIENT-20845909
  • published13 Oct 2026
  • disclosed9 Oct 2026

Introduced: 9 Oct 2026

NewCVE-2026-107886  (opens in a new tab)
CWE-1341  (opens in a new tab)

How to fix?

Upgrade RHEL:10 cups-client to version 0:2.4.19-4.5.hum1 or higher.
This issue was patched in RHSA-2026:81410.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cups-client package and not the cups-client package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

OpenPrinting CUPS before 2.4.20 contains a double-free in printer-class management. When CUPS-Add-Modify-Class replaces an existing class member list, add_class() frees pclass->printers without clearing the pointer. If subsequent validation fails, the class retains the dangling pointer; CUPS-Delete-Class subsequently frees the same allocation in cupsdDeletePrinter(). A client authorized to modify and delete classes can cause scheduler-wide denial of service. The default policy requires @SYSTEM privileges.

CVSS Base Scores

version 3.1