CVE-2026-109094 · Infrastructure
NO FIX YET · SEE WHAT TO DO
An integer overflow in the XRes extension's QueryResourceBytes swap path causes an out-of-bounds read in X.Org xwayland before 24.1.15 and X Server before 21.1.26 on 32-bit systems. An authenticated client can use it to crash the X server.
first public Nov 13, 2026 · 1 source
Check it with your coding agent
It reads this page and tells you if your code or app is affected.
Affects X.Org X Server before 21.1.26 and xwayland before 24.1.15 on 32-bit systems. Systems on 64-bit hardware, or running patched releases, can skip it. Exposure needs an authenticated X client, so systems with no local or remote X clients are lower risk.
Not affected if 64-bit-systems, no-x-clients, patched-release
Who cares 32-bit, linux-desktop, x.org, xwayland
Xorg -version or Xwayland -version and compare the version to the fixed releases.uname -m).21.1.26 or later.24.1.15 or later.A integer overflow that can lead to a buffer overrread in the XRes QueryResourceBytes Swap Path in the X.Org xwayland before 24.1.15 and X Server before 21.1.26 on 32bit systems could be used by authenticated clients to crash the X server.
This page as .md · .json · CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
Are you affected?
Ask from here. InfraStack checks the affected versions against your stack and answers in your inbox.
InfraStack checks the affected versions against your stack and answers in Slack, with the evidence and the fix.
InfraStack checks it against your stack and answers on your report, with the evidence and the fix.