# CVE-2026-50263: Xorg-x11-server: xorg-x11-server-xwayland: xorg-x11-server: use-after-free information disclosure in createsaverwindow()

CVE-2026-50263 is fixed in 33 products on 1 platform, first by ALAS2023-2026-1790, released June 8, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-50263
- Priority: High
- CVSS: 7.8 (Moderate)
- EPSS: 0.0014
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jun 2, 2026
- Weakness: Use After Free
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50263

## Description

A use-after-free flaw was found in the X.Org X server and Xwayland in CreateSaverWindow(). A client can trigger a use-after-free read after changing window attributes and forcing the screen saver, leading to information disclosure.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | tigervnc RHEL 8 | 0:1.15.0-10.el8_10 | [RHSA-2026:28923](https://patchblox.com/security/data/fix/linux/rhsa-2026-28923.md) | Jun 25, 2026 |
| Linux | tigervnc RHEL 9 | 0:1.15.0-7.el9_8.2 | [RHSA-2026:29844](https://patchblox.com/security/data/fix/linux/rhsa-2026-29844.md) | Jun 29, 2026 |
| Linux | tigervnc almalinux 8 | 1.15.0-10.el8_10 | [ALSA-2026:28923](https://patchblox.com/security/data/fix/linux/alsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc almalinux 9 | 1.15.0-7.el9_8.2 | [ALSA-2026:29844](https://patchblox.com/security/data/fix/linux/alsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc ol 8 | 0:1.15.0-10.el8_10 | [ELSA-2026-28923](https://patchblox.com/security/data/fix/linux/elsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc ol 9 | 0:1.15.0-7.el9_8.2 | [ELSA-2026-29844](https://patchblox.com/security/data/fix/linux/elsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc rocky 8 | 0:1.15.0-10.el8_10 | [RLSA-2026:28923](https://patchblox.com/security/data/fix/linux/rlsa-2026-28923.md) | Jun 25, 2026 |
| Linux | tigervnc rocky 9 | 0:1.15.0-7.el9_8.2 | [RLSA-2026:29844](https://patchblox.com/security/data/fix/linux/rlsa-2026-29844.md) | Jun 26, 2026 |
| Linux | tigervnc-debuginfo amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-debugsource amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-icons RHEL 8 | 0:1.15.0-10.el8_10 | [RHSA-2026:28923](https://patchblox.com/security/data/fix/linux/rhsa-2026-28923.md) | Jun 25, 2026 |
| Linux | tigervnc-icons RHEL 9 | 0:1.15.0-7.el9_8.2 | [RHSA-2026:29844](https://patchblox.com/security/data/fix/linux/rhsa-2026-29844.md) | Jun 29, 2026 |
| Linux | tigervnc-icons almalinux 8 | 1.15.0-10.el8_10 | [ALSA-2026:28923](https://patchblox.com/security/data/fix/linux/alsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-icons almalinux 9 | 1.15.0-7.el9_8.2 | [ALSA-2026:29844](https://patchblox.com/security/data/fix/linux/alsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-icons amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-icons ol 8 | 0:1.15.0-10.el8_10 | [ELSA-2026-28923](https://patchblox.com/security/data/fix/linux/elsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-icons ol 9 | 0:1.15.0-7.el9_8.2 | [ELSA-2026-29844](https://patchblox.com/security/data/fix/linux/elsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-license RHEL 8 | 0:1.15.0-10.el8_10 | [RHSA-2026:28923](https://patchblox.com/security/data/fix/linux/rhsa-2026-28923.md) | Jun 25, 2026 |
| Linux | tigervnc-license RHEL 9 | 0:1.15.0-7.el9_8.2 | [RHSA-2026:29844](https://patchblox.com/security/data/fix/linux/rhsa-2026-29844.md) | Jun 29, 2026 |
| Linux | tigervnc-license almalinux 8 | 1.15.0-10.el8_10 | [ALSA-2026:28923](https://patchblox.com/security/data/fix/linux/alsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-license almalinux 9 | 1.15.0-7.el9_8.2 | [ALSA-2026:29844](https://patchblox.com/security/data/fix/linux/alsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-license amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-license ol 8 | 0:1.15.0-10.el8_10 | [ELSA-2026-28923](https://patchblox.com/security/data/fix/linux/elsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-license ol 9 | 0:1.15.0-7.el9_8.2 | [ELSA-2026-29844](https://patchblox.com/security/data/fix/linux/elsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-selinux RHEL 8 | 0:1.15.0-10.el8_10 | [RHSA-2026:28923](https://patchblox.com/security/data/fix/linux/rhsa-2026-28923.md) | Jun 25, 2026 |
| Linux | tigervnc-selinux RHEL 9 | 0:1.15.0-7.el9_8.2 | [RHSA-2026:29844](https://patchblox.com/security/data/fix/linux/rhsa-2026-29844.md) | Jun 29, 2026 |
| Linux | tigervnc-selinux almalinux 8 | 1.15.0-10.el8_10 | [ALSA-2026:28923](https://patchblox.com/security/data/fix/linux/alsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-selinux almalinux 9 | 1.15.0-7.el9_8.2 | [ALSA-2026:29844](https://patchblox.com/security/data/fix/linux/alsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-selinux amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-selinux ol 8 | 0:1.15.0-10.el8_10 | [ELSA-2026-28923](https://patchblox.com/security/data/fix/linux/elsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-selinux ol 9 | 0:1.15.0-7.el9_8.2 | [ELSA-2026-29844](https://patchblox.com/security/data/fix/linux/elsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-server RHEL 8 | 0:1.15.0-10.el8_10 | [RHSA-2026:28923](https://patchblox.com/security/data/fix/linux/rhsa-2026-28923.md) | Jun 25, 2026 |
| Linux | tigervnc-server RHEL 9 | 0:1.15.0-7.el9_8.2 | [RHSA-2026:29844](https://patchblox.com/security/data/fix/linux/rhsa-2026-29844.md) | Jun 29, 2026 |
| Linux | tigervnc-server almalinux 8 | 1.15.0-10.el8_10 | [ALSA-2026:28923](https://patchblox.com/security/data/fix/linux/alsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-server almalinux 9 | 1.15.0-7.el9_8.2 | [ALSA-2026:29844](https://patchblox.com/security/data/fix/linux/alsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-server amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-server ol 8 | 0:1.15.0-10.el8_10 | [ELSA-2026-28923](https://patchblox.com/security/data/fix/linux/elsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-server ol 9 | 0:1.15.0-7.el9_8.2 | [ELSA-2026-29844](https://patchblox.com/security/data/fix/linux/elsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-server-debuginfo amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-server-minimal RHEL 8 | 0:1.15.0-10.el8_10 | [RHSA-2026:28923](https://patchblox.com/security/data/fix/linux/rhsa-2026-28923.md) | Jun 25, 2026 |
| Linux | tigervnc-server-minimal RHEL 9 | 0:1.15.0-7.el9_8.2 | [RHSA-2026:29844](https://patchblox.com/security/data/fix/linux/rhsa-2026-29844.md) | Jun 29, 2026 |
| Linux | tigervnc-server-minimal almalinux 8 | 1.15.0-10.el8_10 | [ALSA-2026:28923](https://patchblox.com/security/data/fix/linux/alsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-server-minimal almalinux 9 | 1.15.0-7.el9_8.2 | [ALSA-2026:29844](https://patchblox.com/security/data/fix/linux/alsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-server-minimal amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-server-minimal ol 8 | 0:1.15.0-10.el8_10 | [ELSA-2026-28923](https://patchblox.com/security/data/fix/linux/elsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-server-minimal ol 9 | 0:1.15.0-7.el9_8.2 | [ELSA-2026-29844](https://patchblox.com/security/data/fix/linux/elsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-server-minimal-debuginfo amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-server-module RHEL 8 | 0:1.15.0-10.el8_10 | [RHSA-2026:28923](https://patchblox.com/security/data/fix/linux/rhsa-2026-28923.md) | Jun 25, 2026 |
| Linux | tigervnc-server-module RHEL 9 | 0:1.15.0-7.el9_8.2 | [RHSA-2026:29844](https://patchblox.com/security/data/fix/linux/rhsa-2026-29844.md) | Jun 29, 2026 |
| Linux | tigervnc-server-module almalinux 8 | 1.15.0-10.el8_10 | [ALSA-2026:28923](https://patchblox.com/security/data/fix/linux/alsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-server-module almalinux 9 | 1.15.0-7.el9_8.2 | [ALSA-2026:29844](https://patchblox.com/security/data/fix/linux/alsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-server-module amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | tigervnc-server-module ol 8 | 0:1.15.0-10.el8_10 | [ELSA-2026-28923](https://patchblox.com/security/data/fix/linux/elsa-2026-28923.md) | Jun 24, 2026 |
| Linux | tigervnc-server-module ol 9 | 0:1.15.0-7.el9_8.2 | [ELSA-2026-29844](https://patchblox.com/security/data/fix/linux/elsa-2026-29844.md) | Jun 25, 2026 |
| Linux | tigervnc-server-module-debuginfo amzn 2023 | 1.14.1-3.amzn2023.0.6 | [ALAS2023-2026-1892](https://patchblox.com/security/data/fix/linux/alas2023-2026-1892.md) | Jun 22, 2026 |
| Linux | xorg-server Debian 12.15 (bookworm) | 2:21.1.7-3+deb12u13 | [DEBIAN-CVE-2026-50263](https://patchblox.com/security/data/fix/linux/debian-cve-2026-50263.md) | Jun 24, 2026 |
| Linux | xorg-server Debian 13.5 (trixie) | 2:21.1.16-1.3+deb13u3 | [DEBIAN-CVE-2026-50263](https://patchblox.com/security/data/fix/linux/debian-cve-2026-50263.md) | Jun 24, 2026 |
| Linux | xorg-server Debian 14 | 2:21.1.23-1 | [DEBIAN-CVE-2026-50263](https://patchblox.com/security/data/fix/linux/debian-cve-2026-50263.md) | Jun 24, 2026 |
| Linux | xorg-x11-server rocky 8 | 0:1.20.11-28.el8_10.2 | [RLSA-2026:26709](https://patchblox.com/security/data/fix/linux/rlsa-2026-26709.md) | Jun 19, 2026 |
| Linux | xorg-x11-server rocky 9 | 0:1.20.11-34.el9_8.2 | [RLSA-2026:26610](https://patchblox.com/security/data/fix/linux/rlsa-2026-26610.md) | Jun 19, 2026 |
| Linux | xorg-x11-server-Xdmx RHEL 8 | 0:1.20.11-28.el8_10.2 | [RHSA-2026:26709](https://patchblox.com/security/data/fix/linux/rhsa-2026-26709.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xdmx RHEL 9 | 0:1.20.11-34.el9_8.2 | [RHSA-2026:26610](https://patchblox.com/security/data/fix/linux/rhsa-2026-26610.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xdmx almalinux 8 | 1.20.11-28.el8_10.2 | [ALSA-2026:26709](https://patchblox.com/security/data/fix/linux/alsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xdmx almalinux 9 | 1.20.11-34.el9_8.2 | [ALSA-2026:26610](https://patchblox.com/security/data/fix/linux/alsa-2026-26610.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xdmx ol 8 | 0:1.20.11-28.el8_10.2 | [ELSA-2026-26709](https://patchblox.com/security/data/fix/linux/elsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xdmx ol 9 | 0:1.20.11-34.el9_8.2 | [ELSA-2026-26610](https://patchblox.com/security/data/fix/linux/elsa-2026-26610.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-Xephyr RHEL 8 | 0:1.20.11-28.el8_10.2 | [RHSA-2026:26709](https://patchblox.com/security/data/fix/linux/rhsa-2026-26709.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xephyr RHEL 9 | 0:1.20.11-34.el9_8.2 | [RHSA-2026:26610](https://patchblox.com/security/data/fix/linux/rhsa-2026-26610.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xephyr almalinux 8 | 1.20.11-28.el8_10.2 | [ALSA-2026:26709](https://patchblox.com/security/data/fix/linux/alsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xephyr almalinux 9 | 1.20.11-34.el9_8.2 | [ALSA-2026:26610](https://patchblox.com/security/data/fix/linux/alsa-2026-26610.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xephyr amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xephyr ol 8 | 0:1.20.11-28.el8_10.2 | [ELSA-2026-26709](https://patchblox.com/security/data/fix/linux/elsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xephyr ol 9 | 0:1.20.11-34.el9_8.2 | [ELSA-2026-26610](https://patchblox.com/security/data/fix/linux/elsa-2026-26610.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-Xephyr-debuginfo amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xnest RHEL 8 | 0:1.20.11-28.el8_10.2 | [RHSA-2026:26709](https://patchblox.com/security/data/fix/linux/rhsa-2026-26709.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xnest RHEL 9 | 0:1.20.11-34.el9_8.2 | [RHSA-2026:26610](https://patchblox.com/security/data/fix/linux/rhsa-2026-26610.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xnest almalinux 8 | 1.20.11-28.el8_10.2 | [ALSA-2026:26709](https://patchblox.com/security/data/fix/linux/alsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xnest almalinux 9 | 1.20.11-34.el9_8.2 | [ALSA-2026:26610](https://patchblox.com/security/data/fix/linux/alsa-2026-26610.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xnest amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xnest ol 8 | 0:1.20.11-28.el8_10.2 | [ELSA-2026-26709](https://patchblox.com/security/data/fix/linux/elsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xnest ol 9 | 0:1.20.11-34.el9_8.2 | [ELSA-2026-26610](https://patchblox.com/security/data/fix/linux/elsa-2026-26610.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-Xnest-debuginfo amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xorg RHEL 8 | 0:1.20.11-28.el8_10.2 | [RHSA-2026:26709](https://patchblox.com/security/data/fix/linux/rhsa-2026-26709.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xorg RHEL 9 | 0:1.20.11-34.el9_8.2 | [RHSA-2026:26610](https://patchblox.com/security/data/fix/linux/rhsa-2026-26610.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xorg almalinux 8 | 1.20.11-28.el8_10.2 | [ALSA-2026:26709](https://patchblox.com/security/data/fix/linux/alsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xorg almalinux 9 | 1.20.11-34.el9_8.2 | [ALSA-2026:26610](https://patchblox.com/security/data/fix/linux/alsa-2026-26610.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xorg amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xorg ol 8 | 0:1.20.11-28.el8_10.2 | [ELSA-2026-26709](https://patchblox.com/security/data/fix/linux/elsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xorg ol 9 | 0:1.20.11-34.el9_8.2 | [ELSA-2026-26610](https://patchblox.com/security/data/fix/linux/elsa-2026-26610.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-Xorg-debuginfo amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xvfb RHEL 8 | 0:1.20.11-28.el8_10.2 | [RHSA-2026:26709](https://patchblox.com/security/data/fix/linux/rhsa-2026-26709.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xvfb RHEL 9 | 0:1.20.11-34.el9_8.2 | [RHSA-2026:26610](https://patchblox.com/security/data/fix/linux/rhsa-2026-26610.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xvfb almalinux 8 | 1.20.11-28.el8_10.2 | [ALSA-2026:26709](https://patchblox.com/security/data/fix/linux/alsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xvfb almalinux 9 | 1.20.11-34.el9_8.2 | [ALSA-2026:26610](https://patchblox.com/security/data/fix/linux/alsa-2026-26610.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xvfb amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xvfb ol 8 | 0:1.20.11-28.el8_10.2 | [ELSA-2026-26709](https://patchblox.com/security/data/fix/linux/elsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xvfb ol 9 | 0:1.20.11-34.el9_8.2 | [ELSA-2026-26610](https://patchblox.com/security/data/fix/linux/elsa-2026-26610.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-Xvfb-debuginfo amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xwayland RHEL 10 | 24.1.5-6.el10_0.1 | [RHSA-2026:36798](https://patchblox.com/security/data/fix/linux/rhsa-2026-36798.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xwayland RHEL 8 | 0:21.1.3-20.el8_10.2 | [RHSA-2026:26562](https://patchblox.com/security/data/fix/linux/rhsa-2026-26562.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xwayland RHEL 9 | 0:24.1.9-4.el9_8.2 | [RHSA-2026:26590](https://patchblox.com/security/data/fix/linux/rhsa-2026-26590.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xwayland almalinux 10 | 24.1.9-4.el10_2.2 | [ALSA-2026:26566](https://patchblox.com/security/data/fix/linux/alsa-2026-26566.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xwayland almalinux 8 | 21.1.3-20.el8_10.2 | [ALSA-2026:26562](https://patchblox.com/security/data/fix/linux/alsa-2026-26562.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xwayland almalinux 9 | 24.1.9-4.el9_8.2 | [ALSA-2026:26590](https://patchblox.com/security/data/fix/linux/alsa-2026-26590.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xwayland amzn 2023 | 24.1.3-1.amzn2023.0.5 | [ALAS2023-2026-1789](https://patchblox.com/security/data/fix/linux/alas2023-2026-1789.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xwayland ol 10 | 0:24.1.9-4.el10_2.2 | [ELSA-2026-26566](https://patchblox.com/security/data/fix/linux/elsa-2026-26566.md) | Jul 16, 2026 |
| Linux | xorg-x11-server-Xwayland ol 8 | 0:21.1.3-20.el8_10.2 | [ELSA-2026-26562](https://patchblox.com/security/data/fix/linux/elsa-2026-26562.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xwayland ol 9 | 0:24.1.9-4.el9_8.2 | [ELSA-2026-26590](https://patchblox.com/security/data/fix/linux/elsa-2026-26590.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-Xwayland rocky 10 | 0:24.1.9-4.el10_2.2 | [RLSA-2026:26566](https://patchblox.com/security/data/fix/linux/rlsa-2026-26566.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xwayland rocky 8 | 0:21.1.3-20.el8_10.2 | [RLSA-2026:26562](https://patchblox.com/security/data/fix/linux/rlsa-2026-26562.md) | Jun 19, 2026 |
| Linux | xorg-x11-server-Xwayland rocky 9 | 0:24.1.9-4.el9_8.2 | [RLSA-2026:26590](https://patchblox.com/security/data/fix/linux/rlsa-2026-26590.md) | Jun 19, 2026 |
| Linux | xorg-x11-server-Xwayland-debuginfo amzn 2023 | 24.1.3-1.amzn2023.0.5 | [ALAS2023-2026-1789](https://patchblox.com/security/data/fix/linux/alas2023-2026-1789.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xwayland-debugsource amzn 2023 | 24.1.3-1.amzn2023.0.5 | [ALAS2023-2026-1789](https://patchblox.com/security/data/fix/linux/alas2023-2026-1789.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xwayland-devel RHEL 9 | 0:24.1.9-4.el9_8.2 | [RHSA-2026:26590](https://patchblox.com/security/data/fix/linux/rhsa-2026-26590.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-Xwayland-devel almalinux 10 | 24.1.9-4.el10_2.2 | [ALSA-2026:26566](https://patchblox.com/security/data/fix/linux/alsa-2026-26566.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xwayland-devel almalinux 9 | 24.1.9-4.el9_8.2 | [ALSA-2026:26590](https://patchblox.com/security/data/fix/linux/alsa-2026-26590.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-Xwayland-devel amzn 2023 | 24.1.3-1.amzn2023.0.5 | [ALAS2023-2026-1789](https://patchblox.com/security/data/fix/linux/alas2023-2026-1789.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-Xwayland-devel ol 10 | 0:24.1.9-4.el10_2.2 | [ELSA-2026-26566](https://patchblox.com/security/data/fix/linux/elsa-2026-26566.md) | Jul 16, 2026 |
| Linux | xorg-x11-server-Xwayland-devel ol 9 | 0:24.1.9-4.el9_8.2 | [ELSA-2026-26590](https://patchblox.com/security/data/fix/linux/elsa-2026-26590.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-common RHEL 8 | 0:1.20.11-28.el8_10.2 | [RHSA-2026:26709](https://patchblox.com/security/data/fix/linux/rhsa-2026-26709.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-common RHEL 9 | 0:1.20.11-34.el9_8.2 | [RHSA-2026:26610](https://patchblox.com/security/data/fix/linux/rhsa-2026-26610.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-common almalinux 8 | 1.20.11-28.el8_10.2 | [ALSA-2026:26709](https://patchblox.com/security/data/fix/linux/alsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-common almalinux 9 | 1.20.11-34.el9_8.2 | [ALSA-2026:26610](https://patchblox.com/security/data/fix/linux/alsa-2026-26610.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-common amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-common ol 8 | 0:1.20.11-28.el8_10.2 | [ELSA-2026-26709](https://patchblox.com/security/data/fix/linux/elsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-common ol 9 | 0:1.20.11-34.el9_8.2 | [ELSA-2026-26610](https://patchblox.com/security/data/fix/linux/elsa-2026-26610.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-debuginfo amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-debugsource amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-devel RHEL 8 | 0:1.20.11-28.el8_10.2 | [RHSA-2026:26709](https://patchblox.com/security/data/fix/linux/rhsa-2026-26709.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-devel RHEL 9 | 0:1.20.11-34.el9_8.2 | [RHSA-2026:26610](https://patchblox.com/security/data/fix/linux/rhsa-2026-26610.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-devel almalinux 8 | 1.20.11-28.el8_10.2 | [ALSA-2026:26709](https://patchblox.com/security/data/fix/linux/alsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-devel almalinux 9 | 1.20.11-34.el9_8.2 | [ALSA-2026:26610](https://patchblox.com/security/data/fix/linux/alsa-2026-26610.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-devel amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-devel ol 8 | 0:1.20.11-28.el8_10.2 | [ELSA-2026-26709](https://patchblox.com/security/data/fix/linux/elsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-devel ol 9 | 0:1.20.11-34.el9_8.2 | [ELSA-2026-26610](https://patchblox.com/security/data/fix/linux/elsa-2026-26610.md) | Jun 23, 2026 |
| Linux | xorg-x11-server-source RHEL 8 | 0:1.20.11-28.el8_10.2 | [RHSA-2026:26709](https://patchblox.com/security/data/fix/linux/rhsa-2026-26709.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-source RHEL 9 | 0:1.20.11-34.el9_8.2 | [RHSA-2026:26610](https://patchblox.com/security/data/fix/linux/rhsa-2026-26610.md) | Jun 24, 2026 |
| Linux | xorg-x11-server-source almalinux 8 | 1.20.11-28.el8_10.2 | [ALSA-2026:26709](https://patchblox.com/security/data/fix/linux/alsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-source almalinux 9 | 1.20.11-34.el9_8.2 | [ALSA-2026:26610](https://patchblox.com/security/data/fix/linux/alsa-2026-26610.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-source amzn 2023 | 21.1.13-5.amzn2023.0.10 | [ALAS2023-2026-1790](https://patchblox.com/security/data/fix/linux/alas2023-2026-1790.md) | Jun 8, 2026 |
| Linux | xorg-x11-server-source ol 8 | 0:1.20.11-28.el8_10.2 | [ELSA-2026-26709](https://patchblox.com/security/data/fix/linux/elsa-2026-26709.md) | Jun 17, 2026 |
| Linux | xorg-x11-server-source ol 9 | 0:1.20.11-34.el9_8.2 | [ELSA-2026-26610](https://patchblox.com/security/data/fix/linux/elsa-2026-26610.md) | Jun 23, 2026 |
| Linux | xwayland Debian 14 | 2:24.1.12-1 | [DEBIAN-CVE-2026-50263](https://patchblox.com/security/data/fix/linux/debian-cve-2026-50263.md) | Jun 24, 2026 |

---

Data as of 2026-11-08T00:53:09Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

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