PT-2026-30234 · Openprinting+3 · Cups+3

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CVE-2026-27447

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Published

2026-03-31

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Updated

2026-08-25

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Name of the Vulnerable Software and Affected Versions OpenPrinting CUPS versions prior to 2.4.16
Description The CUPS daemon (cupsd) contains an authorization bypass caused by case-insensitive username comparison during authorization checks. This allows an unprivileged user to gain unauthorized access to restricted operations by using a username that differs only in case from an authorized user.
Recommendations Update the rootio-cups package to a fixed version.

Exploit

Fix

DoS

Incorrect Authorization

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Weakness Enumeration

Related Identifiers

AZL-81822
BDU:2026-05580
CVE-2026-27447
ECHO-5DE4-11C3-45F3
GHSA-V987-M8HP-PHJ9
OESA-2026-1932
OESA-2026-1933
OESA-2026-2018
OESA-2026-2019
OESA-2026-2020
OESA-2026-2021
OPENSUSE-SU-2026:10589-1
OPENSUSE-SU-2026:20812-1
RHSA-2026:8814
SUSE-SU-2026:21787-1
SUSE-SU-2026:21836-1
SUSE-SU-2026:21850-1
SUSE-SU-2026:21871-1
SUSE-SU-2026:2718-1
SUSE-SU-2026:2732-1
USN-8405-1

Affected Products

Cups
Linuxmint
Red Os
Ubuntu