Issued:
2026-07-21
Updated:
2026-07-21

RHSA-2026:42828 - Important: httpd:2.4 security, bug fix, and enhancement update

Synopsis

Important: httpd:2.4 security, bug fix, and enhancement update

Type/Severity

Security Advisory Important

Topic

An update for the httpd:2.4 module is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The httpd packages provide the Apache HTTP Server, a powerful, efficient, and extensible web server.

Security Fix(es):

  • httpd: incomplete fix for CVE-2023-38709 (CVE-2024-42516)

  • httpd: NULL pointer dereference via specially crafted request (CVE-2026-29169)

  • httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers (CVE-2026-34356)

  • httpd: Apache HTTP Server: Buffer Over-read via outbound OCSP requests to attacker-controlled server (CVE-2026-44185)

  • httpd: Apache HTTP Server: Denial of Service via crafted regular expressions (CVE-2026-44631)

  • httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server (CVE-2026-44186)

  • httpd: Apache HTTP Server: Heap-based Buffer Overflow via untrusted content in mod_xml2enc (CVE-2026-42536)

  • httpd: Apache HTTP Server: Buffer overflow in mod_proxy_html allows security bypass (CVE-2026-34355)

  • httpd: Apache HTTP Server: Out-of-bounds Read in mod_headers and mod_mime (CVE-2026-43951)

Bug Fix(es) and Enhancement(s):

  • mod_proxy_html regression in CVE-2026-34355 fix [rhel-8.10.z] (JIRA:RHEL-192751)

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.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for x86_648x86_64
Red Hat Enterprise Linux for x86_64 - Extended Life Cycle8.10x86_64
Red Hat Enterprise Linux for Power, little endian8ppc64le
Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle8.10ppc64le
Red Hat Enterprise Linux for IBM z Systems8s390x
Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle8.10s390x
Red Hat Enterprise Linux for ARM 648aarch64
Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle8.10aarch64

Updated Packages

  • httpd-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • httpd-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.src.rpm
  • mod_http2-debuginfo-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64.rpm
  • mod_http2-debugsource-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64.rpm
  • mod_ldap-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • mod_ldap-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • mod_md-debuginfo-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.aarch64.rpm
  • mod_proxy_html-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • httpd-tools-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • httpd-filesystem-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.noarch.rpm
  • mod_proxy_html-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • httpd-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • mod_http2-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.src.rpm
  • mod_session-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • mod_ssl-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • httpd-debugsource-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • mod_ssl-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • mod_session-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • httpd-manual-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.noarch.rpm
  • httpd-tools-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • httpd-devel-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.aarch64.rpm
  • mod_md-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.aarch64.rpm
  • mod_http2-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.aarch64.rpm
  • mod_md-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.src.rpm
  • mod_md-debugsource-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.aarch64.rpm
  • mod_http2-debugsource-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64.rpm
  • mod_proxy_html-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_ssl-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • httpd-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_ldap-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_session-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • httpd-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_proxy_html-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_md-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.x86_64.rpm
  • mod_ssl-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_session-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • httpd-tools-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_http2-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64.rpm
  • mod_md-debuginfo-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.x86_64.rpm
  • httpd-devel-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_ldap-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_http2-debuginfo-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.x86_64.rpm
  • mod_md-debugsource-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.x86_64.rpm
  • httpd-debugsource-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • httpd-tools-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.x86_64.rpm
  • mod_ssl-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • httpd-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • httpd-tools-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_ldap-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_md-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.s390x.rpm
  • httpd-debugsource-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_md-debuginfo-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.s390x.rpm
  • mod_proxy_html-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_session-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_http2-debugsource-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x.rpm
  • mod_http2-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x.rpm
  • mod_md-debugsource-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.s390x.rpm
  • httpd-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_http2-debuginfo-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.s390x.rpm
  • httpd-tools-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_ldap-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_proxy_html-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_session-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_ssl-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • httpd-devel-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.s390x.rpm
  • mod_ldap-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_proxy_html-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • httpd-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_ldap-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_session-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_http2-debugsource-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le.rpm
  • mod_session-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_ssl-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_proxy_html-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • httpd-tools-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • httpd-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_http2-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le.rpm
  • httpd-tools-debuginfo-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_ssl-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_http2-debuginfo-1.15.7-10.module+el8.10.0+24521+219dcfc5.7.ppc64le.rpm
  • mod_md-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.ppc64le.rpm
  • httpd-debugsource-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_md-debuginfo-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.ppc64le.rpm
  • httpd-devel-2.4.37-65.module+el8.10.0+24521+219dcfc5.9.ppc64le.rpm
  • mod_md-debugsource-2.0.8-8.module+el8.10.0+23815+1b5e1c66.2.ppc64le.rpm

Fixes

CVEs

References

Additional information