RHSA-2026:56868 - Security Advisory

Topic

Red Hat JBoss Core Services Apache HTTP Server 2.4.62 Service Pack 5 is now available.

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

Red Hat JBoss Core Services is a set of supplementary software for Red Hat JBoss middleware products. This software, such as Apache HTTP Server, is common to multiple JBoss middleware products and packaged under Red Hat JBoss Core Services, to allow for faster distribution of updates and for a more consistent update experience.

This release of Red Hat JBoss Core Services Apache HTTP Server 2.4.62 Service Pack 5 serves as a replacement for Red Hat JBoss Core Services Apache HTTP Server 2.4.62 Service Pack 4, and includes bug fixes and enhancements, which are documented in the Release Notes linked to in the References section.

Security Fix(es):

• jbcs-httpd24-httpd: incomplete fix for CVE-2023-38709 (CVE-2024-42516)
• jbcs-httpd24-httpd: Apache HTTP Server: Privilege Escalation via .htaccess file manipulation (CVE-2026-24072)
• jbcs-httpd24-mod_http2: Apache HTTP Server mod_http2: Use After Free vulnerability allows arbitrary code execution or denial of service (CVE-2026-48913)
• mod_http2.so: Apache HTTP Server mod_http2: Use After Free vulnerability allows arbitrary code execution or denial of service (CVE-2026-48913)
• jbcs-httpd24-httpd: Apache HTTP Server: Arbitrary code execution or denial of service via use-after-free in mod_ldap per-directory configuration (CVE-2026-29167)
• jbcs-httpd24-httpd: Apache httpd mod_dav_fs: Denial of Service due to path handling issue (CVE-2026-42535)
• jbcs-httpd24-httpd: Apache HTTP Server: Denial of Service via crafted regular expressions (CVE-2026-44631)
• jbcs-httpd24-httpd: SSRF in Apache HTTP Server with mod_proxy loaded (CVE-2024-43204)
• jbcs-httpd24-httpd: Apache HTTP Server: Buffer overflow in mod_proxy_html allows security bypass (CVE-2026-34355)
• jbcs-httpd24-httpd: Apache HTTP Server: Heap-based Buffer Overflow via untrusted content in mod_xml2enc (CVE-2026-42536)
• jbcs-httpd24-httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server (CVE-2026-44186)
• jbcs-httpd24-httpd: Apache HTTP Server - Cross-site scripting in mod_proxy_ftp HTML directory list generation (CVE-2026-29170)
• jbcs-httpd24-httpd: jbcs-httpd24-mod_http2: Apache HTTP Server - Out-of-bounds Read in mod_headers and mod_mime with multiple response languages (CVE-2026-43951)
• jbcs-httpd24-httpd: Apache HTTP Server - Improper Privilege Management allowing .htaccess authors to read files as httpd user (CVE-2026-44119)
• jbcs-httpd24-httpd: Apache HTTP Server: Buffer Over-read via outbound OCSP requests to attacker-controlled server (CVE-2026-44185)
• jbcs-httpd24-httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server (CVE-2026-44186)
• jbcs-httpd24-httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers (CVE-2026-34356)

A Red Hat Security Bulletin which addresses further details about this flaw is available in the References section.

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

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

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

Affected Products

• Red Hat JBoss Core Services 1 for RHEL 8 x86_64

Fixes

• BZ - 2374549 - CVE-2024-42516 httpd: incomplete fix for CVE-2023-38709
• BZ - 2374553 - CVE-2024-43204 httpd: SSRF in Apache HTTP Server with mod_proxy loaded
• BZ - 2464941 - CVE-2026-24072 Apache HTTP Server: mod_rewrite: Apache HTTP Server: Privilege Escalation via .htaccess file manipulation
• BZ - 2486394 - CVE-2026-29167 httpd: Apache HTTP Server: Arbitrary code execution or denial of service via use-after-free in mod_ldap per-directory configuration
• BZ - 2486395 - CVE-2026-34356 httpd: Apache HTTP Server: Heap-based Buffer Overflow via malicious backend servers
• BZ - 2486397 - CVE-2026-44185 httpd: Apache HTTP Server: Buffer Over-read via outbound OCSP requests to attacker-controlled server
• BZ - 2486399 - CVE-2026-44631 httpd: Apache HTTP Server: Denial of Service via crafted regular expressions
• BZ - 2486402 - CVE-2026-44186 httpd: Apache HTTP Server: Denial of Service in mod_proxy_ftp via attacker-controlled FTP server
• BZ - 2486405 - CVE-2026-48913 httpd: mod_http2: Apache HTTP Server mod_http2: Use After Free vulnerability allows arbitrary code execution or denial of service.
• BZ - 2486406 - CVE-2026-42535 httpd: Apache httpd mod_dav_fs: Denial of Service due to path handling issue
• BZ - 2486411 - CVE-2026-42536 httpd: Apache HTTP Server: Heap-based Buffer Overflow via untrusted content in mod_xml2enc
• BZ - 2486414 - CVE-2026-34355 httpd: Apache HTTP Server: Buffer overflow in mod_proxy_html allows security bypass
• BZ - 2486415 - CVE-2026-43951 httpd: Apache HTTP Server: Out-of-bounds Read in mod_headers and mod_mime
• BZ - 2486416 - CVE-2026-44119 httpd: Apache HTTP Server: Local .htaccess authors can read files with httpd user privileges
• BZ - 2486419 - CVE-2026-29170 httpd: Apache HTTP Server: Cross-site scripting in mod_proxy_ftp via HTML directory list generation
• JBCS-2284 - [temp-tracker] CVE-2026-29170 jbcs-httpd24-httpd: Apache HTTP Server - Cross-site scripting in mod_proxy_ftp HTML directory list generation [jbcs-httpd-2.4]
• JBCS-2286 - [temp-tracker] CVE-2026-43951 jbcs-httpd24-httpd: Apache HTTP Server - Out-of-bounds Read in mod_headers and mod_mime with multiple response languages [jbcs-httpd-2.4]
• JBCS-2287 - [temp-tracker] CVE-2026-44119 jbcs-httpd24-httpd: Apache HTTP Server - Improper Privilege Management allowing .htaccess authors to read files as httpd user [jbcs-httpd-2.4]
• JBCS-2285 - [temp-tracker] CVE-2026-34356 Apache HTTP Server - Heap-based Buffer Overflow via ProxyPassReverseCookie with malicious backend [jbcs-httpd-2.4]

CVEs

• CVE-2024-42516
• CVE-2024-43204
• CVE-2026-24072
• CVE-2026-29167
• CVE-2026-29170
• CVE-2026-34355
• CVE-2026-34356
• CVE-2026-42356
• CVE-2026-42535
• CVE-2026-42536
• CVE-2026-43951
• CVE-2026-44119
• CVE-2026-44185
• CVE-2026-44186
• CVE-2026-44631
• CVE-2026-48913

References

• https://access.redhat.com/security/updates/classification/#important
• https://docs.redhat.com/en/documentation/red_hat_jboss_core_services/2.4.62/html/red_hat_jboss_core_services_apache_http_server_2.4.62_service_pack_5_release_notes/index