OpenSUSE Critical Security Update for glibc CVE-2026-4046 High Severity
suse
June 4, 2026
An update that solves three vulnerabilities can now be installed.
Summary
## This update for glibc fixes the following issues * CVE-2026-4046: assertion failure when converting inputs may be used to remotely crash an application (bsc#1261206). * CVE-2026-5450: stdio-common: scanf %mc pattern will cause heap overflow when width > 1024 (bsc#1262465). * CVE-2026-5928: libio: ungetwc could be used to leak data on special conditions (bsc#1262464). ## 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: * openSUSE Leap 15.6 zypper in -t patch SUSE-2026-2231=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2231=1 * Basesystem Module 15-SP7
Topics Covered
References
* bsc#1261206
* bsc#1262464
* bsc#1262465
Cross-
* CVE-2026-4046
* CVE-2026-5450
* CVE-2026-5928
CVSS scores:
* CVE-2026-4046 ( SUSE ): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-4046 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-4046 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-5450 ( SUSE ): 5.1
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
* CVE-2026-5450 ( SUSE ): 5.9 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
* CVE-2026-5450 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-5928 ( SUSE ): 5.9
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-5928 ( SUSE ): 5.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
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Severity
important
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Critical
Announcement ID: SUSE-SU-2026:2231-1
Release Date: 2026-06-03T10:57:32Z
Rating: important
Topics Covered
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