Linux · 
Oracle Linux · Security advisory · April 28, 2026
Oracle Linux · Security advisory · April 28, 2026ELSA-2026-11388: Security update for 8 packages
ELSA-2026-11388, released April 28, 2026, fixes 3 CVEs across 8 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
3
None rated Critical
Exploited
0
None reported
Highest CVSS
7.8
Base score, 0 to 10
Highest EPSS
0.0038
32nd percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 3
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| xorg-x11-server-Xdmx | ol 9 | 0:1.20.11-33.el9_7 |
| xorg-x11-server-Xephyr | ol 9 | 0:1.20.11-33.el9_7 |
| xorg-x11-server-Xnest | ol 9 | 0:1.20.11-33.el9_7 |
| xorg-x11-server-Xorg | ol 9 | 0:1.20.11-33.el9_7 |
| xorg-x11-server-Xvfb | ol 9 | 0:1.20.11-33.el9_7 |
| xorg-x11-server-common | ol 9 | 0:1.20.11-33.el9_7 |
| xorg-x11-server-devel | ol 9 | 0:1.20.11-33.el9_7 |
| xorg-x11-server-source | ol 9 | 0:1.20.11-33.el9_7 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-33999 | Xorg: xwayland: x.org x server: denial of service via integer underflow in xkb compatibility map handling | 7.8 | 0.0038 | None reported |
| High | CVE-2026-34001 | xorg-x11-server-common: X.Org is an open-source implementation of the X Window System | 7.8 | 0.0026 | None reported |
| High | CVE-2026-34003 | xorg-x11-server-common: X.Org is an open-source implementation of the X Window System | 7.8 | 0.0025 | None reported |
Showing 1 to 3 of 3
1
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.