ALAS2-2026-4114

Amazon Linux 2 (EOS) Security Advisory: ALAS2-2026-4114
Advisory Released Date: 2026-11-12
Advisory Updated Date: 2026-11-12
Severity: Critical
Issue Overview:

mod_md NULL pointer dereference leads to child process crash (CVE-2026-106023)

mod_vhost_alias 1 byte stack buffer overwrite (after CVE-2026-63292) (CVE-2026-109163)

Concurrent Execution using Shared Resource with Improper Synchronization vulnerability in Apache HTTP Server's mod_http2 in assign_headers() can lead to RCE. (CVE-2026-119618)


Affected Packages:

httpd


Note:

This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.


Issue Correction:
Run yum update httpd or yum update --advisory ALAS2-2026-4114 to update your system.

New Packages:
aarch64:
    httpd-2.4.71-1.amzn2.0.1.aarch64
    httpd-devel-2.4.71-1.amzn2.0.1.aarch64
    httpd-tools-2.4.71-1.amzn2.0.1.aarch64
    mod_http2-2.4.71-1.amzn2.0.1.aarch64
    mod_ssl-2.4.71-1.amzn2.0.1.aarch64
    mod_md-2.4.71-1.amzn2.0.1.aarch64
    mod_proxy_html-2.4.71-1.amzn2.0.1.aarch64
    mod_ldap-2.4.71-1.amzn2.0.1.aarch64
    mod_session-2.4.71-1.amzn2.0.1.aarch64
    httpd-debuginfo-2.4.71-1.amzn2.0.1.aarch64

i686:
    httpd-2.4.71-1.amzn2.0.1.i686
    httpd-devel-2.4.71-1.amzn2.0.1.i686
    httpd-tools-2.4.71-1.amzn2.0.1.i686
    mod_http2-2.4.71-1.amzn2.0.1.i686
    mod_ssl-2.4.71-1.amzn2.0.1.i686
    mod_md-2.4.71-1.amzn2.0.1.i686
    mod_proxy_html-2.4.71-1.amzn2.0.1.i686
    mod_ldap-2.4.71-1.amzn2.0.1.i686
    mod_session-2.4.71-1.amzn2.0.1.i686
    httpd-debuginfo-2.4.71-1.amzn2.0.1.i686

noarch:
    httpd-manual-2.4.71-1.amzn2.0.1.noarch
    httpd-filesystem-2.4.71-1.amzn2.0.1.noarch

src:
    httpd-2.4.71-1.amzn2.0.1.src

x86_64:
    httpd-2.4.71-1.amzn2.0.1.x86_64
    httpd-devel-2.4.71-1.amzn2.0.1.x86_64
    httpd-tools-2.4.71-1.amzn2.0.1.x86_64
    mod_http2-2.4.71-1.amzn2.0.1.x86_64
    mod_ssl-2.4.71-1.amzn2.0.1.x86_64
    mod_md-2.4.71-1.amzn2.0.1.x86_64
    mod_proxy_html-2.4.71-1.amzn2.0.1.x86_64
    mod_ldap-2.4.71-1.amzn2.0.1.x86_64
    mod_session-2.4.71-1.amzn2.0.1.x86_64
    httpd-debuginfo-2.4.71-1.amzn2.0.1.x86_64

Additional References

Red Hat: CVE-2026-106023, CVE-2026-109163, CVE-2026-119618

Mitre: CVE-2026-106023, CVE-2026-109163, CVE-2026-119618