Linux · Security advisory · July 13, 2026

RHSA-2026:38488: xorg-x11-server-Xwayland security update

RHSA-2026:38488, released July 13, 2026, fixes 1 CVE in xorg-x11-server-Xwayland (version 0:21.1.3-20.el8_10.3). None of them is reported as exploited. Patch Radar priority: High.

High
CVEs closed
1
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0033
26th percentile

Fixed package versions

ProductReleaseFixed in
xorg-x11-server-XwaylandRHEL 80:21.1.3-20.el8_10.3

CVEs this fix closes

PriorityCVETitleImpactCVSSEPSSExploitation
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
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