ALPINE-CVE-2026-27447

ALPINE-CVE-2026-27447 PUBLISHED CVSS 6.300000190734863 MEDIUM

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.

Risk Scores

CVSS v3.1

6.300000190734863

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

Affected Products

Vendor	Product	Versions
Alpine:v3.21	cups	2.3.3-r4, 0, 1.4.1-r0
Alpine:v3.22	cups	1.4.8-r0, 1.5.4-r0, 1.5.4-r1
Alpine:v3.20	cups	2.2.2-r1, 1.4.1-r0, 1.4.2-r0
Alpine:v3.23	cups	0, 1.4.1-r0, 1.4.2-r0

Timeline

Apr 3, 2026 CVE Published
Apr 29, 2026 CVE Updated
Apr 30, 2026 Distribution Patch

References

https://security.alpinelinux.org/vuln/CVE-2026-27447 advisory

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