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SUSE CUPS Important Denial of Service Heap Overflow Vuln 2026-21850-1

suse
Calendar Grey June 1, 2026
Dist Suse Esm H88
Eight vulnerabilities in CUPS fixed by SUSE in important update for security and stability. Immediate patching is recommended.
An update that solves eight 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-2026-34990: Local print admin token disclosure using temporary printers (bsc#1261568). * CVE-2026-39314: negative `job-password-supported` attribute can lead to a denial of service (bsc#1261743). * CVE-2026-39316: dangling subscription pointer can lead to a denial of service (bsc#1261742).

Topics%20covered

Topics Covered

security advisory denial of service SuSE important heap overflow cups

References

* bsc#1261568

* bsc#1261569

* bsc#1261570

* bsc#1261571

* bsc#1261572

* bsc#1261742

* bsc#1261743

* bsc#1263116

Cross-

* CVE-2026-27447

* CVE-2026-34978

* CVE-2026-34979

* CVE-2026-34980

* CVE-2026-34990

* CVE-2026-39314

* CVE-2026-39316

* CVE-2026-41079

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 ): 6.3 CVSS:3.1/AV:N/AC:L/PR:L/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-2026-34978 ( 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

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:21850-1
Release Date: 2026-05-26T12:19:57Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important heap overflow cups

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