RLSA-2026:34355

Synopsis

Moderate: mod_http2 security, bug fix, and enhancement update

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 (JIRA:Rocky Linux-188008)

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.

Affected products

Rocky Linux 10 aarch64 Rocky Linux 10 ppc64le Rocky Linux 10 riscv64 Rocky Linux 10 s390x Rocky Linux 10 x86_64

Fixes

2486415 2486405

CVEs

CVE-2026-43951 CVE-2026-48913

Affected packages

Rocky Linux 10 aarch64 - AppStream

mod_http2-debuginfo-0:2.0.29-4.el10_2.2.aarch64.rpm mod_http2-0:2.0.29-4.el10_2.2.aarch64.rpm mod_http2-debugsource-0:2.0.29-4.el10_2.2.aarch64.rpm mod_http2-0:2.0.29-4.el10_2.2.src.rpm

Rocky Linux 10 s390x - AppStream

mod_http2-debuginfo-0:2.0.29-4.el10_2.2.s390x.rpm mod_http2-debugsource-0:2.0.29-4.el10_2.2.s390x.rpm mod_http2-0:2.0.29-4.el10_2.2.s390x.rpm mod_http2-0:2.0.29-4.el10_2.2.src.rpm

Rocky Linux 10 ppc64le - AppStream

mod_http2-debugsource-0:2.0.29-4.el10_2.2.ppc64le.rpm mod_http2-0:2.0.29-4.el10_2.2.ppc64le.rpm mod_http2-0:2.0.29-4.el10_2.2.src.rpm mod_http2-debuginfo-0:2.0.29-4.el10_2.2.ppc64le.rpm

Rocky Linux 10 x86_64 - AppStream

mod_http2-debugsource-0:2.0.29-4.el10_2.2.x86_64.rpm mod_http2-debuginfo-0:2.0.29-4.el10_2.2.x86_64.rpm mod_http2-0:2.0.29-4.el10_2.2.src.rpm mod_http2-0:2.0.29-4.el10_2.2.x86_64.rpm

Rocky Linux 10 riscv64 - AppStream

mod_http2-0:2.0.29-4.el10_2.2.src.rpm