Linux · 
Red Hat · Security advisory · July 13, 2026
Red Hat · Security advisory · July 13, 2026RHSA-2026:50100: xorg-x11-server-Xwayland security update
RHSA-2026:50100, released July 13, 2026, fixes 2 CVEs in xorg-x11-server-Xwayland (version 24.1.5-6.el10_0.2). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
2
None rated Critical
Exploited
0
None reported
Highest CVSS
7.8
Base score, 0 to 10
Highest EPSS
0.0033
26th percentile
Priority of the 2 CVEs
Patch now 0
Urgent 0
High 2
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| xorg-x11-server-Xwayland | RHEL 10 | 24.1.5-6.el10_0.2 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-55999 | xorg-x11-server-Xwayland: Local attackers with a X connection able to provide PCX fonts to the X server xorg-server before 21.2.24 and xwaylan... | 7.8 | 0.0033 | None reported |
| High | CVE-2026-56000 | xorg-x11-server / xwayland GLX contextTags Use-After-Free in CommonMakeCurrent() | 7.8 | 0.0031 | None reported |
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