Alerts This Week
Warning Icon 1 1,154
Alerts This Week
Warning Icon 1 1,154

openSUSE Leap 16.0 xwayland Important Fix CVE-2026-33999 2026-20560-1

opensuse
Calendar Grey April 21, 2026
Dist Opensuse Esm H88
This update resolves 5 important issues in xwayland affecting openSUSE, improving system stability and security.
An update that solves 5 vulnerabilities and has 5 bug fixes can now be installed.

Description

This update for xwayland fixes the following issues:

- CVE-2026-33999: XKB Integer Underflow in XkbSetCompatMap() (bsc#1260922).

- CVE-2026-34000: XKB Out-of-bounds Read in CheckSetGeom() (bsc#1260923).

- CVE-2026-34001: XSYNC Use-after-free in miSyncTriggerFence() (bsc#1260924).

- CVE-2026-34002: XKB Out-of-bounds read in CheckModifierMap() (bsc#1260925).

- CVE-2026-34003: XKB Buffer overflow in CheckKeyTypes() (bsc#1260926).

Patch instructions:

To install this openSUSE security 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 16.0

zypper in -t patch openSUSE-Leap-16.0-583=1

Topics%20covered

Topics Covered

security advisory denial of service bug fix important OpenSUSE Xwayland

Patch

Package List

- openSUSE Leap 16.0:

xwayland-24.1.6-160000.4.1

xwayland-devel-24.1.6-160000.4.1

References

* bsc#1260922

* bsc#1260923

* bsc#1260924

* bsc#1260925

* bsc#1260926

References:

* https://www.suse.com/security/cve/CVE-2026-33999.html

* https://www.suse.com/security/cve/CVE-2026-34000.html

* https://www.suse.com/security/cve/CVE-2026-34001.html

* https://www.suse.com/security/cve/CVE-2026-34002.html

* https://www.suse.com/security/cve/CVE-2026-34003.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: openSUSE-SU-2026:20560-1
Rating: important
Affected Products: openSUSE Leap 16.0 -------------------------------------------------------------

Topics%20covered

Topics Covered

security advisory denial of service bug fix important OpenSUSE Xwayland

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here