Description
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.
Metrics
CVSS 3.1 8.0/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| OpenPrinting | cups | < 2.4.13 |
References
- https://github.com/OpenPrinting/cups/commit/595d691075b1d396d2edfaa0a8fd0873a0a1f221Patch
- https://github.com/OpenPrinting/cups/security/advisories/GHSA-4c68-qgrh-rmmqExploit, Vendor Advisory
- http://www.openwall.com/lists/oss-security/2025/09/11/1
- https://lists.debian.org/debian-lts-announce/2025/09/msg00013.html
Timeline
- Published
- Sep 11, 2025
- Last modified
- Jun 17, 2026
- NVD status
- Modified