PT-2026-33103 · Xwayland+2 · Xwayland+2

Jan-Niklas Sohn · Published 2026-03-25 · Updated 2026-06-05 · CVE-2026-34000

Positive Technologies (AI Summary)

CVSS v3.1

9.1

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Name of the Vulnerable Software and Affected Versions xwayland versions prior to 24.1.9-2.1 xorg-x11-server versions prior to 21.1.21-5.1

Description Security issues were identified in xwayland and xorg-x11-server.

Recommendations Update xwayland to version 24.1.9-2.1. Update xorg-x11-server to version 21.1.21-5.1.

Fix

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2026-05827

CVE-2026-34000

ECHO-3DD8-08D4-1C16

OESA-2026-2139

OPENSUSE-SU-2026:10556-1

OPENSUSE-SU-2026:10557-1

OPENSUSE-SU-2026:20544-1

OPENSUSE-SU-2026:20560-1

RHSA-2026:19342

SUSE-SU-2026:1328-1

SUSE-SU-2026:1329-1

SUSE-SU-2026:1330-1

SUSE-SU-2026:1331-1

SUSE-SU-2026:1332-1

SUSE-SU-2026:1333-1

SUSE-SU-2026:1335-1

SUSE-SU-2026:21211-1

Affected Products

Rocky Linux

Xorg-X11-Server

Xwayland

References · 84

• https://osv.dev/vulnerability/SUSE-SU-2026:1329-1 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:21741 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:22424 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:20561 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:20544-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-34002 · Security Note
• https://access.redhat.com/errata/RHSA-2026:20563 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:20576 · Vendor Advisory
• https://access.redhat.com/errata/RHSA-2026:21742 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1332-1 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2026:1333-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-34000 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-34000 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-34001 · Security Note
• https://osv.dev/vulnerability/openSUSE-SU-2026:10556-1 · Vendor Advisory