Security Advisories›RHSA-2026:0036

RHSA-2026:0036 — Security Advisory

Red Hat Security Advisory: xorg-x11-server-Xwayland security update

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Severity

Moderate

Red Hat Product Security

RHEL 9

Products

Official CSAF product identity

Published · January 5, 2026

Updated · July 12, 2026

Topic

An update for xorg-x11-server-Xwayland is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Xwayland is an X server for running X clients under Wayland.

Security Fix(es):

  • xorg: xmayland: Use-after-free in XPresentNotify structure creation (CVE-2025-62229)

  • xorg: xwayland: Use-after-free in Xkb client resource removal (CVE-2025-62230)

  • xorg: xmayland: Value overflow in XkbSetCompatMap() (CVE-2025-62231)

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.

Related CVEs

RHSA-2026:0036 — Red Hat Security Advisory: xorg-x11-server-Xwayland security update | PulseLinux