CVE-2026-34990

A flaw was found in OpenPrinting CUPS. A local unprivileged user can exploit this vulnerability by coercing the cupsd service to authenticate to an attacker-controlled Internet Printing Protocol (IPP) service. This allows the user to create a persistent printer queue that can overwrite arbitrary files with root privileges. Successful exploitation can lead to privilege escalation and arbitrary root command execution.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.