{"schemaVersion":3,"id":"CVE-2026-27447","aliases":["ALPINE-CVE-2026-27447","UBUNTU-CVE-2026-27447","DEBIAN-CVE-2026-27447"],"status":"published","duplicateOf":null,"title":null,"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. 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