Linux · 
Amazon Linux · Security advisory · April 27, 2026
Amazon Linux · Security advisory · April 27, 2026ALAS2023-2026-1614: Security update for 13 packages
ALAS2023-2026-1614, released April 27, 2026, fixes 5 CVEs across 13 products. None of them is reported as exploited. Patch Radar priority: Urgent.
Urgent
CVEs closed
5
2 rated Critical
Exploited
0
None reported
Highest CVSS
9.1
Base score, 0 to 10
Highest EPSS
0.0049
42nd percentile
Priority of the 5 CVEs
Patch now 0
Urgent 2
High 3
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| xorg-x11-server-Xephyr | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-Xephyr-debuginfo | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-Xnest | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-Xnest-debuginfo | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-Xorg | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-Xorg-debuginfo | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-Xvfb | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-Xvfb-debuginfo | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-common | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-debuginfo | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-debugsource | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-devel | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
| xorg-x11-server-source | amzn 2023 | 21.1.13-5.amzn2023.0.9 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Urgent | CVE-2026-34000 | xorg-server: A flaw was found in the X.Org X server | 9.1 | 0.0049 | None reported |
| Urgent | CVE-2026-34002 | xorg-x11-server: This update for xorg-x11-server fixes the following issues: - CVE-2026-33999: XKB integer underflow in XkbSetCompatM... | 9.1 | 0.0049 | None reported |
| 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 |
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