SUSE-SU-2026:2787-1: important: Security update for xwayland

[SLE-SECURITY-UPDATES]

# Security update for xwayland

Announcement ID: SUSE-SU-2026:2787-1  
Release Date: 2026-07-08T07:19:18Z  
Rating: important  
References:

  * bsc#1268893
  * bsc#1268894

  
Cross-References:

  * CVE-2026-55999
  * CVE-2026-56000

  
CVSS scores:

  * CVE-2026-55999 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-55999 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-55999 ( NVD ):  8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
  * CVE-2026-56000 ( SUSE ):  7.3
    CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  * CVE-2026-56000 ( SUSE ):  7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  * CVE-2026-56000 ( NVD ):  9.0
    CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

  
Affected Products:

  * SUSE Linux Enterprise Desktop 15 SP7
  * SUSE Linux Enterprise Server 15 SP7
  * SUSE Linux Enterprise Server for SAP Applications 15 SP7
  * SUSE Linux Enterprise Workstation Extension 15 SP7

  
  
An update that solves two vulnerabilities can now be installed.

## Description:

This update for xwayland fixes the following issues

  * CVE-2026-55999: missing bounds check in `glamor_font_get` can lead to a heap
    buffer overflow when a font loaded from a malicious PCF file is processed
    (bsc#1268893).
  * CVE-2026-56000: improper memory management in `CommonMakeCurrent` can lead
    to a heap use-after-free when an interaction with a malicious client
    creating GLX contexts happens (bsc#1268894).

## 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 Enterprise Workstation Extension 15 SP7  
    zypper in -t patch SUSE-SLE-Product-WE-15-SP7-2026-2787=1

## Package List:

  * SUSE Linux Enterprise Workstation Extension 15 SP7 (x86_64)
    * xwayland-24.1.5-150700.3.22.1
    * xwayland-debugsource-24.1.5-150700.3.22.1
    * xwayland-debuginfo-24.1.5-150700.3.22.1

## References:

  * https://www.suse.com/security/cve/CVE-2026-55999.html
  * https://www.suse.com/security/cve/CVE-2026-56000.html
  * https://bugzilla.suse.com/show_bug.cgi?id=1268893
  * https://bugzilla.suse.com/show_bug.cgi?id=1268894

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