Name: Alma Linux: CVE-2026-93518: Important: xorg-x11-server security update (Multiple Advisories)
Creator: Rapid7
Published: 2026-10-28T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-93518, CWE-122, CVSS 7.8

An integer truncation issue in XkbResizeKeyType() that could lead to a heap buffer overflow by authenticated X clients in X.org X server before 21.1.25 and XWayland before 24.1.14 could be exploited for crashes or potential code execution in the X server.

CVSS Details

CVSS 3.1 Base Score: 7.8
CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Alma_linux	—	Upgrade xorg-x11-server-XnestUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-develUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-source	Oct 20, 2026	Oct 19, 2026
Redhat_linux	—	Upgrade xorg-x11-server-commonUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-sourceUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xvfb-debuginfoUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-debugsourceNo solution existsUpgrade xorg-x11-server-debuginfo	Oct 13, 2026	Oct 7, 2026
Rocky_linux	—	Upgrade xorg-x11-server-XvfbUpgrade xorg-x11-server-Xorg-debuginfoUpgrade xorg-x11-server-Xnest-debuginfoUpgrade xorg-x11-server-debuginfoUpgrade xorg-x11-server-Xephyr-debuginfoUpgrade xorg-x11-server-XorgUpgrade xorg-x11-server-Xdmx-debuginfoUpgrade xorg-x11-server-XnestUpgrade xorg-x11-server-Xwayland-develUpgrade xorg-x11-server-XwaylandUpgrade xorg-x11-server-develUpgrade xorg-x11-server-Xwayland-debugsourceUpgrade xorg-x11-server-commonUpgrade xorg-x11-server-XephyrUpgrade xorg-x11-server-XdmxUpgrade xorg-x11-server-Xwayland-debuginfoUpgrade xorg-x11-server-debugsourceUpgrade xorg-x11-server-Xvfb-debuginfo	Oct 22, 2026	Oct 20, 2026

Prioritize with Active Threat Intelligence

With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.

Explore Intelligence Hub

MDR Buyer's Guide

Global Threat Landscape Report

Grow your business

CVSS Details

Covered by Rapid7

Prioritize with Active Threat Intelligence