Amazon Linux 2023 Security Advisory: ALAS2023-2026-1724
Advisory Released Date: 2026-05-26
Advisory Updated Date: 2026-05-26
Severity:
Important
Issue Overview:
Double Free and possible RCE vulnerability in Apache HTTP Server with the HTTP/2 protocol.
This issue affects Apache HTTP Server: 2.4.66.
Users are recommended to upgrade to version 2.4.67, which fixes the issue. (CVE-2026-23918)
Affected Packages:
mod_http2
Issue Correction:
Run dnf update mod_http2 --releasever 2023.11.20260526 or dnf update --advisory ALAS2023-2026-1724 --releasever 2023.11.20260526 to update your system.
More information on how to update your system can be found on this page: Amazon Linux 2023 documentation
New Packages:
aarch64:
mod_http2-debugsource-2.0.39-1.amzn2023.0.1.aarch64
mod_http2-debuginfo-2.0.39-1.amzn2023.0.1.aarch64
mod_http2-2.0.39-1.amzn2023.0.1.aarch64
src:
mod_http2-2.0.39-1.amzn2023.0.1.src
x86_64:
mod_http2-debugsource-2.0.39-1.amzn2023.0.1.x86_64
mod_http2-debuginfo-2.0.39-1.amzn2023.0.1.x86_64
mod_http2-2.0.39-1.amzn2023.0.1.x86_64