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Affected Component
Analysis
cups
Exploitable
Name
CVE-2026-27447
Description
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, CUPS daemon (cupsd) contains an authorization bypass vulnerability due to case-insensitive username comparison during authorization checks. The vulnerability allows an unprivileged user to gain unauthorized access to restricted operations by using a user with a username that differs only in case from an authorized user. At time of publication, there are no publicly available patches.
CWEs
Published Date
Updated Date
Workaround
-
Analysis#
Vulnerability Ratings#
4.8
CVSSv31
6.3
CVSSv31
NaN
other
Others affected components#
Resolved with patches#
cups (yocto:scarthgap)
#
Title
Author
Resolve
1
Fix unauthenticated print policies (Issue #1557)
Michael R Sweet <msweet@msweet.org>
CVE-2026-27447
2
CVE-2026-27447: The scheduler treated local user and group
Michael R Sweet <msweet@msweet.org>
CVE-2026-27447
3
Fix cupsd crash if user does not exist on server
Zdenek Dohnal <zdohnal@redhat.com>
CVE-2026-27447