SUSE-SU-2026:2718-1: moderate: Security update for cups

Wed Jul 1 16:45:09 UTC 2026

# Security update for cups

Announcement ID: SUSE-SU-2026:2718-1  
Release Date: 2026-07-01T10:23:34Z  
Rating: moderate  
References:

  * bsc#1261569
  * bsc#1261570
  * bsc#1261571
  * bsc#1261572
  * bsc#1261742

Cross-References:

  * CVE-2026-27447
  * CVE-2026-34978
  * CVE-2026-34979
  * CVE-2026-34980
  * CVE-2026-39316

CVSS scores:

  * CVE-2026-27447 ( SUSE ):  4.8 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
  * CVE-2026-27447 ( NVD ):  4.8 CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:L/A:N
  * CVE-2026-27447 ( NVD ):  6.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
  * CVE-2026-34978 ( SUSE ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-34978 ( NVD ):  6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
  * CVE-2026-34979 ( SUSE ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-34979 ( NVD ):  5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-34980 ( SUSE ):  6.4 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:L
  * CVE-2026-34980 ( NVD ):  6.1
    CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
  * CVE-2026-34980 ( NVD ):  7.5 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-39316 ( SUSE ):  6.8
    CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-39316 ( SUSE ):  5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  * CVE-2026-39316 ( NVD ):  4.0 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  * CVE-2026-39316 ( NVD ):  6.2 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

  * SUSE Linux Enterprise Server 12 SP5
  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security
  * SUSE Linux Enterprise Server for SAP Applications 12 SP5

An update that solves five vulnerabilities can now be installed.

## Description:

This update for cups fixes the following issues

  * CVE-2026-27447: Authorization bypass via case-insensitive group-member
    lookup (bsc#1261572).
  * CVE-2026-34978: Path traversal in RSS notify-recipient-uri enables file
    write outside CacheDir/rss (bsc#1261571).
  * CVE-2026-34979: Heap overflow in `get_options()` (bsc#1261570).
  * CVE-2026-34980: Shared PostScript queue lets anonymous Print-Job requests
    reach `lp` code execution over the network (bsc#1261569).
  * CVE-2026-39316: dangling subscription pointer can lead to a denial of
    service (bsc#1261742).

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".  
Alternatively you can run the command listed for your product:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security  
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-LTSS-EXTENDED-SECURITY-2026-2718=1

## Package List:

  * SUSE Linux Enterprise Server 12 SP5 LTSS Extended Security (x86_64)
    * cups-libs-debuginfo-32bit-1.7.5-20.67.1
    * cups-debugsource-1.7.5-20.67.1
    * cups-client-1.7.5-20.67.1
    * cups-libs-32bit-1.7.5-20.67.1
    * cups-libs-1.7.5-20.67.1
    * cups-devel-1.7.5-20.67.1
    * cups-debuginfo-1.7.5-20.67.1
    * cups-libs-debuginfo-1.7.5-20.67.1
    * cups-1.7.5-20.67.1
    * cups-client-debuginfo-1.7.5-20.67.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-27447.html
  * https://www.suse.com/security/cve/CVE-2026-34978.html
  * https://www.suse.com/security/cve/CVE-2026-34979.html
  * https://www.suse.com/security/cve/CVE-2026-34980.html
  * https://www.suse.com/security/cve/CVE-2026-39316.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1261569
  * https://bugzilla.suse.com/show_bug.cgi?id=1261570
  * https://bugzilla.suse.com/show_bug.cgi?id=1261571
  * https://bugzilla.suse.com/show_bug.cgi?id=1261572
  * https://bugzilla.suse.com/show_bug.cgi?id=1261742

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