CVE-2026-39314

A flaw was found in CUPS, an open-source printing system. An unprivileged local user can exploit an integer underflow vulnerability by providing a negative job-password-supported Internet Printing Protocol (IPP) attribute. This manipulation causes the cupsd root process to crash, which can be repeatedly triggered to achieve a sustained Denial of Service (DoS) on the system.

This Moderate impact vulnerability in CUPS allows an unprivileged local user to trigger a denial of service by providing a specially crafted IPP attribute. This can repeatedly crash the cupsd root process, leading to a sustained denial of service on Red Hat Enterprise Linux systems where CUPS is enabled.

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.