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OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.12 and earlier, when the `AuthType` is set to anything but `Basic`, if the request contains an `Authorization: Basic ...` header, the password is not checked. This results in authentication bypass. Any configuration that allows an `AuthType` that is not `Basic` is affected. Version 2.4.13 fixes the issue.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade cupsUpgrade cups-filesystemUpgrade cups-lpdUpgrade cups-develUpgrade cups-printerappUpgrade cups-ipptoolUpgrade cups-libsUpgrade cups-client | Sep 15, 2025 | Sep 11, 2025 |
| Alpine Linux | — | Upgrade cups | Dec 5, 2025 | Sep 11, 2025 |
| Amazon Linux Ami 2 | — | Upgrade cups-debuginfoUpgrade cups-clientUpgrade cups-ipptoolUpgrade cupsUpgrade cups-libsUpgrade cups-filesystemUpgrade cups-lpdUpgrade cups-devel | May 20, 2026 | May 20, 2026 |
| Amazon_linux_2023 | — | Upgrade cupsUpgrade cups-client-debuginfoUpgrade cups-ipptoolUpgrade cups-libs-debuginfoUpgrade cups-debuginfoUpgrade cups-debugsourceUpgrade cups-printerappUpgrade cups-libsUpgrade cups-clientUpgrade cups-filesystemUpgrade cups-develUpgrade cups-lpd-debuginfoUpgrade cups-lpdUpgrade cups-ipptool-debuginfoUpgrade cups-printerapp-debuginfo | Sep 30, 2025 | Sep 11, 2025 |
| Debian | — | Upgrade cups | Sep 15, 2025 | Sep 15, 2025 |
| Freebsd | — | Upgrade cups | Dec 10, 2025 | Sep 12, 2025 |
| Huawei Euleros 2_0_sp10 | — | Upgrade cups-libs | Jan 15, 2026 | Jan 13, 2026 |
| Huawei Euleros 2_0_sp11 | — | Upgrade cups-libs | Dec 12, 2025 | Nov 11, 2025 |
| Huawei Euleros 2_0_sp12 | — | Upgrade cups-libs | Nov 12, 2025 | Nov 11, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade cups-libs | Dec 12, 2025 | Nov 11, 2025 |
| Oracle_linux | — | Upgrade cups-ipptoolUpgrade cups-develUpgrade cups-printerappUpgrade cupsUpgrade cups-filesystemUpgrade cups-clientUpgrade cups-lpdUpgrade cups-libs | Sep 15, 2025 | Sep 11, 2025 |
| Redhat Openshift | — | Upgrade ose-rhel-coreos | Aug 10, 2026 | Sep 11, 2025 |
| Redhat_linux | — | Upgrade cupsUpgrade cups-lpdUpgrade cups-filesystemUpgrade cups-client-debuginfoUpgrade cups-develUpgrade cups-libs-debuginfoUpgrade cups-debugsourceUpgrade cups-printerappUpgrade cups-libsUpgrade cups-ipptoolUpgrade cups-debuginfoNo solution existsUpgrade cups-ipptool-debuginfoUpgrade cups-lpd-debuginfoUpgrade cups-printerapp-debuginfoUpgrade cups-client | Sep 12, 2025 | Sep 11, 2025 |
| Rocky_linux | — | Upgrade cups-ipptoolUpgrade cups-ipptool-debuginfoUpgrade cups-debuginfoUpgrade cups-clientUpgrade cups-printerapp-debuginfoUpgrade cups-debugsourceUpgrade cups-libsUpgrade cups-printerappUpgrade cups-develUpgrade cups-lpd-debuginfoUpgrade cups-libs-debuginfoUpgrade cupsUpgrade cups-client-debuginfoUpgrade cups-lpd | Feb 5, 2026 | Oct 3, 2025 |
| Suse | — | Upgrade libcupscgi1Upgrade libcupscgi1-32bitUpgrade libcups2-32bitUpgrade cups-clientUpgrade libcupsimage2-32bitUpgrade libcupsppdc1-32bitUpgrade libcupsmime1Upgrade libcupsmime1-32bitUpgrade cups-devel-32bitUpgrade cups-libsUpgrade libcups2Upgrade cups-develUpgrade libcupsppdc1Upgrade libcupsimage2Upgrade cups-configUpgrade cups-libs-32bitUpgrade cups-ddkUpgrade cups | Dec 5, 2025 | Sep 15, 2025 |
| Ubuntu | — | Upgrade cups (Ubuntu Pro)Upgrade cups | Sep 12, 2025 | Sep 11, 2025 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 9, 2025 | Sep 11, 2025 |
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