CVE-2026-34003

xorg-x11-server-common: X.Org is an open-source implementation of the X Window System

CVE-2026-34003 is fixed in 41 products on 1 platform, first by SUSE-SU-2026:1328-1, released April 14, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0025
16th percentile

X.Org is an open-source implementation of the X Window System. It provides the basic low-level functionality that full-fledged graphical user interfaces are designed upon. Security Fix(es): * xorg: xwayland: X.Org X server: Denial of Service via integer underflow in XKB compatibility map handling (CVE-2026-33999) * xorg: xwayland: X.Org X server: Use-after-free vulnerability leads to server crash and potential memory corruption (CVE-2026-34001) * xorg: xwayland: X.Org X server: Information exposure and denial of service via out-of-bounds memory access (CVE-2026-34003) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
tigervnc · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc · RHEL 8 0:1.15.0-9.el8_10 RHSA-2026:13414 May 15, 2026
tigervnc · RHEL 9 0:1.15.0-7.el9_8.1 RHSA-2026:19342 Apr 30, 2026
tigervnc · almalinux 8 1.15.0-9.el8_10 ALSA-2026:13414 May 4, 2026
tigervnc · almalinux 9 1.15.0-7.el9_8.1 ALSA-2026:19342 May 19, 2026
tigervnc · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc · ol 8 0:1.15.0-9.el8_10 ELSA-2026-13414 May 5, 2026
tigervnc · ol 9 0:1.15.0-6.el9_7.1 ELSA-2026-10739 Apr 27, 2026
tigervnc · rocky 8 0:1.15.0-9.el8_10 RLSA-2026:13414 May 7, 2026
tigervnc · rocky 9 0:1.15.0-7.el9_8.1 RLSA-2026:19342 May 28, 2026
tigervnc-debuginfo · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-debuginfo · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-debugsource · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-debugsource · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-icons · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-icons · RHEL 8 0:1.15.0-9.el8_10 RHSA-2026:13414 May 15, 2026
tigervnc-icons · RHEL 9 0:1.15.0-7.el9_8.1 RHSA-2026:19342 Apr 30, 2026
tigervnc-icons · almalinux 8 1.15.0-9.el8_10 ALSA-2026:13414 May 4, 2026
tigervnc-icons · almalinux 9 1.15.0-7.el9_8.1 ALSA-2026:19342 May 19, 2026
tigervnc-icons · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-icons · ol 8 0:1.15.0-9.el8_10 ELSA-2026-13414 May 5, 2026
tigervnc-icons · ol 9 0:1.15.0-6.el9_7.1 ELSA-2026-10739 Apr 27, 2026
tigervnc-license · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-license · RHEL 8 0:1.15.0-9.el8_10 RHSA-2026:13414 May 15, 2026
tigervnc-license · RHEL 9 0:1.15.0-7.el9_8.1 RHSA-2026:19342 Apr 30, 2026
tigervnc-license · almalinux 8 1.15.0-9.el8_10 ALSA-2026:13414 May 4, 2026
tigervnc-license · almalinux 9 1.15.0-7.el9_8.1 ALSA-2026:19342 May 19, 2026
tigervnc-license · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-license · ol 8 0:1.15.0-9.el8_10 ELSA-2026-13414 May 5, 2026
tigervnc-license · ol 9 0:1.15.0-6.el9_7.1 ELSA-2026-10739 Apr 27, 2026
tigervnc-selinux · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-selinux · RHEL 8 0:1.15.0-9.el8_10 RHSA-2026:13414 May 15, 2026
tigervnc-selinux · RHEL 9 0:1.15.0-7.el9_8.1 RHSA-2026:19342 Apr 30, 2026
tigervnc-selinux · almalinux 8 1.15.0-9.el8_10 ALSA-2026:13414 May 4, 2026
tigervnc-selinux · almalinux 9 1.15.0-7.el9_8.1 ALSA-2026:19342 May 19, 2026
tigervnc-selinux · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-selinux · ol 8 0:1.15.0-9.el8_10 ELSA-2026-13414 May 5, 2026
tigervnc-selinux · ol 9 0:1.15.0-6.el9_7.1 ELSA-2026-10739 Apr 27, 2026
tigervnc-server · RHEL 8 0:1.15.0-9.el8_10 RHSA-2026:13414 May 15, 2026
tigervnc-server · RHEL 9 0:1.15.0-7.el9_8.1 RHSA-2026:19342 Apr 30, 2026
tigervnc-server · almalinux 8 1.15.0-9.el8_10 ALSA-2026:13414 May 4, 2026
tigervnc-server · almalinux 9 1.15.0-7.el9_8.1 ALSA-2026:19342 May 19, 2026
tigervnc-server · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-server · ol 8 0:1.15.0-9.el8_10 ELSA-2026-13414 May 5, 2026
tigervnc-server · ol 9 0:1.15.0-6.el9_7.1 ELSA-2026-10739 Apr 27, 2026
tigervnc-server-common · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-server-common-debuginfo · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-server-debuginfo · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-server-minimal · RHEL 8 0:1.15.0-9.el8_10 RHSA-2026:13414 May 15, 2026
tigervnc-server-minimal · RHEL 9 0:1.15.0-7.el9_8.1 RHSA-2026:19342 Apr 30, 2026
tigervnc-server-minimal · almalinux 8 1.15.0-9.el8_10 ALSA-2026:13414 May 4, 2026
tigervnc-server-minimal · almalinux 9 1.15.0-7.el9_8.1 ALSA-2026:19342 May 19, 2026
tigervnc-server-minimal · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-server-minimal · ol 8 0:1.15.0-9.el8_10 ELSA-2026-13414 May 5, 2026
tigervnc-server-minimal · ol 9 0:1.15.0-6.el9_7.1 ELSA-2026-10739 Apr 27, 2026
tigervnc-server-minimal-debuginfo · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-server-module · RHEL 8 0:1.15.0-9.el8_10 RHSA-2026:13414 May 15, 2026
tigervnc-server-module · RHEL 9 0:1.15.0-7.el9_8.1 RHSA-2026:19342 Apr 30, 2026
tigervnc-server-module · almalinux 8 1.15.0-9.el8_10 ALSA-2026:13414 May 4, 2026
tigervnc-server-module · almalinux 9 1.15.0-7.el9_8.1 ALSA-2026:19342 May 19, 2026
tigervnc-server-module · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-server-module · ol 8 0:1.15.0-9.el8_10 ELSA-2026-13414 May 5, 2026
tigervnc-server-module · ol 9 0:1.15.0-6.el9_7.1 ELSA-2026-10739 Apr 27, 2026
tigervnc-server-module-debuginfo · amzn 2023 1.14.1-3.amzn2023.0.5 ALAS2023-2026-1626 Apr 27, 2026
tigervnc-wayland-server · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-wayland-server-debuginfo · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-x11-server · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-x11-server-debuginfo · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-x11-server-module · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
tigervnc-x11-server-module-debuginfo · Fedora 43 1.16.2-4.fc43 FEDORA-2026-AD10AFA9CD Jun 18, 2026
xorg-server · Debian 12.15 (bookworm) 2:21.1.7-3+deb12u12 DEBIAN-CVE-2026-34003 May 15, 2026
xorg-server · Debian 13.5 (trixie) 2:21.1.16-1.3+deb13u2 DEBIAN-CVE-2026-34003 May 15, 2026
xorg-server · Debian 14 2:21.1.22-1 DEBIAN-CVE-2026-34003 May 15, 2026
xorg-x11-server · opensuse-leap 15.6 21.1.11-150600.5.25.1 SUSE-SU-2026:1331-1 Apr 14, 2026
xorg-x11-server · opensuse-leap 16.0 21.1.15-160000.4.1 OPENSUSE-SU-2026:20544-1 Apr 15, 2026
xorg-x11-server · rocky 8 0:1.20.11-28.el8_10 RLSA-2026:11692 Apr 30, 2026
xorg-x11-server · rocky 9 0:1.20.11-34.el9_8 RLSA-2026:19343 May 28, 2026
xorg-x11-server · sles 15.6 21.1.11-150600.5.25.1 SUSE-SU-2026:1331-1 Apr 14, 2026
xorg-x11-server · sles 15.7 21.1.15-150700.5.16.1 SUSE-SU-2026:1330-1 Apr 14, 2026
xorg-x11-server-Xdmx · RHEL 8 0:1.20.11-28.el8_10 RHSA-2026:11692 Apr 30, 2026
xorg-x11-server-Xdmx · RHEL 9 0:1.20.11-34.el9_8 RHSA-2026:19343 Apr 30, 2026
xorg-x11-server-Xdmx · almalinux 8 1.20.11-28.el8_10 ALSA-2026:11692 Apr 29, 2026
xorg-x11-server-Xdmx · almalinux 9 1.20.11-34.el9_8 ALSA-2026:19343 May 19, 2026
xorg-x11-server-Xdmx · ol 8 0:1.20.11-28.el8_10 ELSA-2026-11692 Apr 29, 2026
xorg-x11-server-Xdmx · ol 9 0:1.20.11-33.el9_7 ELSA-2026-11388 Apr 28, 2026
xorg-x11-server-Xephyr · RHEL 8 0:1.20.11-28.el8_10 RHSA-2026:11692 Apr 30, 2026
xorg-x11-server-Xephyr · RHEL 9 0:1.20.11-34.el9_8 RHSA-2026:19343 Apr 30, 2026
xorg-x11-server-Xephyr · almalinux 8 1.20.11-28.el8_10 ALSA-2026:11692 Apr 29, 2026
xorg-x11-server-Xephyr · almalinux 9 1.20.11-34.el9_8 ALSA-2026:19343 May 19, 2026
xorg-x11-server-Xephyr · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-Xephyr · ol 8 0:1.20.11-28.el8_10 ELSA-2026-11692 Apr 29, 2026
xorg-x11-server-Xephyr · ol 9 0:1.20.11-33.el9_7 ELSA-2026-11388 Apr 28, 2026
xorg-x11-server-Xephyr-debuginfo · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-Xnest · RHEL 8 0:1.20.11-28.el8_10 RHSA-2026:11692 Apr 30, 2026
xorg-x11-server-Xnest · RHEL 9 0:1.20.11-34.el9_8 RHSA-2026:19343 Apr 30, 2026
xorg-x11-server-Xnest · almalinux 8 1.20.11-28.el8_10 ALSA-2026:11692 Apr 29, 2026
xorg-x11-server-Xnest · almalinux 9 1.20.11-34.el9_8 ALSA-2026:19343 May 19, 2026
xorg-x11-server-Xnest · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-Xnest · ol 8 0:1.20.11-28.el8_10 ELSA-2026-11692 Apr 29, 2026
xorg-x11-server-Xnest · ol 9 0:1.20.11-33.el9_7 ELSA-2026-11388 Apr 28, 2026
xorg-x11-server-Xnest-debuginfo · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-Xorg · RHEL 8 0:1.20.11-28.el8_10 RHSA-2026:11692 Apr 30, 2026
xorg-x11-server-Xorg · RHEL 9 0:1.20.11-34.el9_8 RHSA-2026:19343 Apr 30, 2026
xorg-x11-server-Xorg · almalinux 8 1.20.11-28.el8_10 ALSA-2026:11692 Apr 29, 2026
xorg-x11-server-Xorg · almalinux 9 1.20.11-34.el9_8 ALSA-2026:19343 May 19, 2026
xorg-x11-server-Xorg · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-Xorg · ol 8 0:1.20.11-28.el8_10 ELSA-2026-11692 Apr 29, 2026
xorg-x11-server-Xorg · ol 9 0:1.20.11-33.el9_7 ELSA-2026-11388 Apr 28, 2026
xorg-x11-server-Xorg-debuginfo · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-Xvfb · RHEL 8 0:1.20.11-28.el8_10 RHSA-2026:11692 Apr 30, 2026
xorg-x11-server-Xvfb · RHEL 9 0:1.20.11-34.el9_8 RHSA-2026:19343 Apr 30, 2026
xorg-x11-server-Xvfb · almalinux 8 1.20.11-28.el8_10 ALSA-2026:11692 Apr 29, 2026
xorg-x11-server-Xvfb · almalinux 9 1.20.11-34.el9_8 ALSA-2026:19343 May 19, 2026
xorg-x11-server-Xvfb · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-Xvfb · ol 8 0:1.20.11-28.el8_10 ELSA-2026-11692 Apr 29, 2026
xorg-x11-server-Xvfb · ol 9 0:1.20.11-33.el9_7 ELSA-2026-11388 Apr 28, 2026
xorg-x11-server-Xvfb-debuginfo · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-Xwayland · RHEL 10 24.1.5-6.el10_0 RHSA-2026:20563 Apr 30, 2026
xorg-x11-server-Xwayland · RHEL 8 0:21.1.3-20.el8_10 RHSA-2026:11656 Apr 30, 2026
xorg-x11-server-Xwayland · RHEL 9 0:24.1.9-4.el9_8 RHSA-2026:19344 Apr 30, 2026
xorg-x11-server-Xwayland · almalinux 10 24.1.9-4.el10_2 ALSA-2026:19125 May 19, 2026
xorg-x11-server-Xwayland · almalinux 8 21.1.3-20.el8_10 ALSA-2026:11656 Apr 29, 2026
xorg-x11-server-Xwayland · almalinux 9 24.1.9-4.el9_8 ALSA-2026:19344 May 19, 2026
xorg-x11-server-Xwayland · amzn 2023 24.1.3-1.amzn2023.0.4 ALAS2023-2026-1613 Apr 27, 2026
xorg-x11-server-Xwayland · ol 10 0:24.1.5-6.el10_1 ELSA-2026-11352 Apr 28, 2026
xorg-x11-server-Xwayland · ol 8 0:21.1.3-20.el8_10 ELSA-2026-11656 Apr 30, 2026
xorg-x11-server-Xwayland · ol 9 0:23.2.7-6.el9_7 ELSA-2026-11369 Apr 28, 2026
xorg-x11-server-Xwayland · rocky 10 0:24.1.9-4.el10_2 RLSA-2026:19125 May 29, 2026
xorg-x11-server-Xwayland · rocky 8 0:21.1.3-20.el8_10 RLSA-2026:11656 Apr 30, 2026
xorg-x11-server-Xwayland · rocky 9 0:24.1.9-4.el9_8 RLSA-2026:19344 May 28, 2026
xorg-x11-server-Xwayland-debuginfo · amzn 2023 24.1.3-1.amzn2023.0.4 ALAS2023-2026-1613 Apr 27, 2026
xorg-x11-server-Xwayland-debugsource · amzn 2023 24.1.3-1.amzn2023.0.4 ALAS2023-2026-1613 Apr 27, 2026
xorg-x11-server-Xwayland-devel · RHEL 9 0:24.1.9-4.el9_8 RHSA-2026:19344 Apr 30, 2026
xorg-x11-server-Xwayland-devel · almalinux 10 24.1.9-4.el10_2 ALSA-2026:19125 May 19, 2026
xorg-x11-server-Xwayland-devel · almalinux 9 24.1.9-4.el9_8 ALSA-2026:19344 May 19, 2026
xorg-x11-server-Xwayland-devel · amzn 2023 24.1.3-1.amzn2023.0.4 ALAS2023-2026-1613 Apr 27, 2026
xorg-x11-server-Xwayland-devel · ol 10 0:24.1.5-6.el10_1 ELSA-2026-11352 Apr 28, 2026
xorg-x11-server-Xwayland-devel · ol 9 0:23.2.7-6.el9_7 ELSA-2026-11369 Apr 28, 2026
xorg-x11-server-common · RHEL 8 0:1.20.11-28.el8_10 RHSA-2026:11692 Apr 30, 2026
xorg-x11-server-common · RHEL 9 0:1.20.11-34.el9_8 RHSA-2026:19343 Apr 30, 2026
xorg-x11-server-common · almalinux 8 1.20.11-28.el8_10 ALSA-2026:11692 Apr 29, 2026
xorg-x11-server-common · almalinux 9 1.20.11-34.el9_8 ALSA-2026:19343 May 19, 2026
xorg-x11-server-common · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-common · ol 8 0:1.20.11-28.el8_10 ELSA-2026-11692 Apr 29, 2026
xorg-x11-server-common · ol 9 0:1.20.11-33.el9_7 ELSA-2026-11388 Apr 28, 2026
xorg-x11-server-debuginfo · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-debugsource · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-devel · RHEL 8 0:1.20.11-28.el8_10 RHSA-2026:11692 Apr 30, 2026
xorg-x11-server-devel · RHEL 9 0:1.20.11-34.el9_8 RHSA-2026:19343 Apr 30, 2026
xorg-x11-server-devel · almalinux 8 1.20.11-28.el8_10 ALSA-2026:11692 Apr 29, 2026
xorg-x11-server-devel · almalinux 9 1.20.11-34.el9_8 ALSA-2026:19343 May 19, 2026
xorg-x11-server-devel · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-devel · ol 8 0:1.20.11-28.el8_10 ELSA-2026-11692 Apr 29, 2026
xorg-x11-server-devel · ol 9 0:1.20.11-33.el9_7 ELSA-2026-11388 Apr 28, 2026
xorg-x11-server-source · RHEL 8 0:1.20.11-28.el8_10 RHSA-2026:11692 Apr 30, 2026
xorg-x11-server-source · RHEL 9 0:1.20.11-34.el9_8 RHSA-2026:19343 Apr 30, 2026
xorg-x11-server-source · almalinux 8 1.20.11-28.el8_10 ALSA-2026:11692 Apr 29, 2026
xorg-x11-server-source · almalinux 9 1.20.11-34.el9_8 ALSA-2026:19343 May 19, 2026
xorg-x11-server-source · amzn 2023 21.1.13-5.amzn2023.0.9 ALAS2023-2026-1614 Apr 27, 2026
xorg-x11-server-source · ol 8 0:1.20.11-28.el8_10 ELSA-2026-11692 Apr 29, 2026
xorg-x11-server-source · ol 9 0:1.20.11-33.el9_7 ELSA-2026-11388 Apr 28, 2026
xwayland · Debian 14 2:24.1.10-1 DEBIAN-CVE-2026-34003 May 15, 2026
xwayland · opensuse-leap 15.6 24.1.1-150600.5.23.1 SUSE-SU-2026:1329-1 Apr 14, 2026
xwayland · opensuse-leap 16.0 24.1.6-160000.4.1 OPENSUSE-SU-2026:20560-1 Apr 17, 2026
xwayland · sles 15.7 24.1.5-150700.3.14.1 SUSE-SU-2026:1328-1 Apr 14, 2026
xwayland · sles 16.0 24.1.6-160000.4.1 SUSE-SU-2026:21211-1 Apr 17, 2026

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