[ALSA-2026:59387] Moderate: mod_http2 security, bug fix, and enhancement update
Type:
security
Severity:
moderate
Release date:
2026-08-26
Description:
The mod_h2 Apache httpd module implements the HTTP2 protocol (h2+h2c) on top of libnghttp2 for httpd 2.4 servers. Security Fix(es): * httpd: mod_http2: Apache HTTP Server mod_http2: Use After Free vulnerability allows arbitrary code execution or denial of service. (CVE-2026-48913) * httpd: Apache HTTP Server: Out-of-bounds Read in mod_headers and mod_mime (CVE-2026-43951) Bug Fix(es) and Enhancement(s): * address CVE-2026-43951 and CVE-2026-48913 in mod_http2 [almalinux-9] (JIRA:AlmaLinux-190583) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Updated packages listed below:
Architecture Package Checksum
aarch64 mod_http2-2.0.26-6.el9_8.2.aarch64.rpm 0855b93ffd23febcf1042746f2f42651bc6bf1d6469ef5d9f894d88bc16646b1
ppc64le mod_http2-2.0.26-6.el9_8.2.ppc64le.rpm 4cdab189fd6821010748b72118f2aa3a3fe146fae4a01ab57d633b74d08b0b6a
s390x mod_http2-2.0.26-6.el9_8.2.s390x.rpm 2950e1292004e1a4e68af1f5746dc799683979dfb74d1a00987e39d6881e756b
x86_64 mod_http2-2.0.26-6.el9_8.2.x86_64.rpm 4d5af2a51dbd92efc05cde9a366cf985fe36d70465537ce6eb7709c082eae541
Notes:
This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.