CVE-2026-27447
MEDIUM6.3EPSS 0.01%Published: 4/3/2026Modified: 5/15/2026
Also known as:ALPINE-CVE-2026-27447DEBIAN-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.
Affected packages (2)
- Alpine/cupsfrom 0, < 2.4.18-r0
- Debian/cupsfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N |