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SUSE Linux Micro 6.0 libcap Important Local Escalation Fix 2026-21243-1

suse
Calendar Grey April 23, 2026
Dist Suse Esm H88
An important update for SUSE libcap addresses local privilege escalation vulnerability. Install now to secure your system.
An update that solves one vulnerability can now be installed.

Summary

## This update for libcap fixes the following issues: * CVE-2026-4878: local privilege escalation through file capability injection due to TOCTOU race condition in `cap_set_file()` (bsc#1261809). ## 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 Micro 6.0 zypper in -t patch SUSE-SLE-Micro-6.0-675=1 ## Package List: * SUSE Linux Micro 6.0 (aarch64 s390x x86_64) * libcap2-2.69-3.1 * libcap2-debuginfo-2.69-3.1 * libcap-debugsource-2.69-3.1

Topics%20covered

Topics Covered

security advisory local privilege escalation SuSE patch important libcap

References

* bsc#1261809

Cross-

* CVE-2026-4878

CVSS scores:

* CVE-2026-4878 ( SUSE ): 7.3

CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-4878 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-4878 ( NVD ): 6.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

Affected Products:

* SUSE Linux Micro 6.0

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-4878.html

* https://bugzilla.suse.com/show_bug.cgi?id=1261809

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:21243-1
Release Date: 2026-04-20T12:44:49Z
Rating: important

Topics%20covered

Topics Covered

security advisory local privilege escalation SuSE patch important libcap

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