ALSA-2026:82015

    Dashboard / Vulnerabilities / ALSA-2026:82015

    ALSA-2026:82015

    Published: 13 Oct 2026Last Modified: 29 Oct 2026

    Summary: Important: xorg-x11-server security update

    Details: 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-x11-server: xorg-x11-server: Privilege escalation via crafted RandR provider property requests (CVE-2026-93521) * xorg-x11-server: xwayland: xorg-x11-server: Arbitrary code execution via double-free in XKB geometry handling (CVE-2026-88812) * xorg-x11-server: xorg-x11-server: Out-of-bounds write via unvalidated modifier in ProcXIPassiveUngrabDevice (CVE-2026-93523) 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.

    References: https://access.redhat.com/errata/RHSA-2026:82015, https://access.redhat.com/security/cve/CVE-2026-88812, https://access.redhat.com/security/cve/CVE-2026-93521, https://access.redhat.com/security/cve/CVE-2026-93523, https://bugzilla.redhat.com/2545164, https://bugzilla.redhat.com/2545174, https://bugzilla.redhat.com/2545177, https://errata.almalinux.org/9/ALSA-2026-82015.html

    Affected packages

    Package

    Name: xorg-x11-server-Xdmx

    Purl: pkg:rpm/almalinux/xorg-x11-server-Xdmx

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -1.20.11-34.el9_8.4

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    ALSA-2026:82015 | CVE-DB