Linux · 
Amazon Linux · Security advisory · April 13, 2026
Amazon Linux · Security advisory · April 13, 2026ALAS2023-2026-1540: Security update for 18 packages
ALAS2023-2026-1540, released April 13, 2026, fixes 6 CVEs across 18 products. None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
6
None rated Critical
Exploited
0
None reported
Highest CVSS
8.2
Base score, 0 to 10
Highest EPSS
0.2594
97th percentile
Priority of the 6 CVEs
Patch now 0
Urgent 0
High 4
Routine 2
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| nginx | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-all-modules | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-core | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-core-debuginfo | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-debuginfo | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-debugsource | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-filesystem | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-devel | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-http-image-filter | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-http-image-filter-debuginfo | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-http-perl | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-http-perl-debuginfo | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-http-xslt-filter | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-http-xslt-filter-debuginfo | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-mail | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-mail-debuginfo | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-stream | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
| nginx-mod-stream-debuginfo | amzn 2023 | 1:1.28.3-1.amzn2023.0.1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-27654 | NGINX ngx_http_dav_module vulnerability | 8.2 | 0.2594 | None reported |
| High | CVE-2026-27784 | NGINX ngx_http_mp4_module vulnerability | 8.2 | 0.0107 | None reported |
| High | CVE-2026-27651 | NGINX ngx_mail_auth_http_module vulnerability | 8.2 | 0.0096 | None reported |
| High | CVE-2026-32647 | NGINX ngx_http_mp4_module vulnerability | 8.2 | 0.0093 | None reported |
| Routine | CVE-2026-28753 | NGINX ngx_mail_proxy_module vulnerability | 3.7 | 0.0028 | None reported |
| Routine | CVE-2026-28755 | NGINX ngx_stream_ssl_module vulnerability | 5.4 | 0.0014 | None reported |
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