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SUSE CUPS Moderate Denial of Service Heap Overflow Vuln 2026-2718-1

suse
Calendar Grey July 1, 2026
Dist Suse Esm H88
This update resolves five security issues in cups for SUSE Linux, improving system integrity and performance.
An update that solves five vulnerabilities can now be installed.

Summary

## 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:

Topics%20covered

Topics Covered

security advisory moderate denial of service SuSE heap overflow cups

References

* bsc#1261569

* bsc#1261570

* bsc#1261571

* bsc#1261572

* bsc#1261742

Cross-

* 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

Severity
moderate
Lowest
Low
Medium
High
Critical

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

Topics%20covered

Topics Covered

security advisory moderate denial of service SuSE heap overflow cups

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