Security features bypass in Apache HTTP Server - CVE-2025-23048

Vulnerability identifier: #VU112730

CSH Severity: Medium

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-23048

CWE-ID: CWE-254

Exploitation vector: Remote access

Exploit availability: Public exploit is available

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to access control bypass with session resumption in mod_ssl. A remote attacker can use the TLS 1.3 session resumption to bypass implemented access control.

Configurations are affected when mod_ssl is configured for multiple virtual hosts, with each restricted to a different set of trusted client certificates (for example with a different SSLCACertificateFile/Path setting). In such a case, a client trusted to access one virtual host may be able to access another virtual host, if SSLStrictSNIVHostCheck is not enabled in either virtual host.

Apache HTTP Server
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Desktop 15
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Enterprise Storage
Anolis OS
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Server Applications Module
Basesystem Module
SUSE Package Hub 15
openSUSE Leap
Ubuntu
openEuler
Fedora
SecurityCenter
EasyApache
IBM Power Hardware Management Console (HMC)
Oracle HTTP Server
IBM Qradar SIEM
Juniper Secure Analytics (JSA)
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
mod_http2
mod_md
apache2 (Ubuntu package)
httpd-manual
httpd
httpd-devel
httpd-tools
mod_ldap
mod_proxy_html
mod_session
mod_ssl
httpd-filesystem
httpd-help
httpd-debugsource
httpd-debuginfo
httpd (Red Hat package)
apache2-doc
apache2-tls13-doc
apache2-example-pages
apache2-tls13-utils-debuginfo
apache2-tls13
apache2
apache2-devel
apache2-tls13-prefork
apache2-worker
apache2-prefork-debuginfo
apache2-tls13-debugsource
apache2-tls13-debuginfo
apache2-prefork
apache2-debugsource
apache2-tls13-worker-debuginfo
apache2-utils
apache2-tls13-prefork-debuginfo
apache2-worker-debuginfo
apache2-debuginfo
apache2-tls13-devel
apache2-tls13-worker
apache2-tls13-utils
apache2-utils-debuginfo
apache2-tls13-example-pages
apache2-event-debuginfo
apache2-event
apache2-manual
apache2-worker-debugsource
apache2-prefork-debugsource
apache2-utils-debugsource
apache2-event-debugsource
Total Storage Service Console (TSSC) / TS4500 IMC

Install updates from vendor's website.

Apache HTTP Server - update to 2.4.64
SecurityCenter - update to SC-202508.1
EasyApache - update to 4 25-24
IBM Qradar SIEM - update to 7.5.0 Update Pack 14 IF01
Juniper Secure Analytics (JSA) - update to 7.5.0 UP14 IF01
IBM Power Hardware Management Console (HMC) - addressed in versions 10.3.1060.0 SP3, 11.1.1110.0
mod_http2 - update to 1.15.7-10
mod_md - update to 2.0.8-8
apache2 (Ubuntu package) - addressed in versions 2.4.18-2ubuntu3.17+esm16, 2.4.29-1ubuntu4.27+esm6, 2.4.41-4ubuntu3.23+esm2, 2.4.52-1ubuntu4.15, 2.4.58-1ubuntu8.7, 2.4.63-1ubuntu1.1
httpd-manual - update to 2.4.37-655.0.1
httpd - update to 2.4.37-655.0.1
httpd-devel - update to 2.4.37-655.0.1
httpd-tools - update to 2.4.37-655.0.1
mod_ldap - update to 2.4.37-655.0.1
mod_proxy_html - update to 2.4.37-655.0.1
mod_session - update to 2.4.37-655.0.1
mod_ssl - update to 2.4.37-655.0.1
httpd-filesystem - update to 2.4.37-655.0.1
httpd-help - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
httpd-filesystem - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
httpd-devel - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
mod_ssl - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
mod_session - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
mod_proxy_html - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
mod_md - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
httpd-tools - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
mod_ldap - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
httpd-debugsource - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
httpd-debuginfo - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
httpd - addressed in versions 2.4.43-28, 2.4.51-25, 2.4.58-10
httpd (Red Hat package) - addressed in versions 2.4.51-7.el9_0.10, 2.4.53-11.el9_2.13, 2.4.57-11.el9_4.3, 2.4.63-1.el10_0.2
apache2-doc - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.66-150400.6.57.1
apache2-tls13-doc - update to 2.4.51-35.69.1
apache2-example-pages - addressed in versions 2.4.51-35.69.1, 2.4.51-150400.6.46.1, 2.4.66-150400.6.57.1
apache2-tls13-utils-debuginfo - update to 2.4.51-35.69.1
apache2-tls13 - update to 2.4.51-35.69.1
apache2 - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-devel - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-tls13-prefork - update to 2.4.51-35.69.1
apache2-worker - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-prefork-debuginfo - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-tls13-debugsource - update to 2.4.51-35.69.1
apache2-tls13-debuginfo - update to 2.4.51-35.69.1
apache2-prefork - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-debugsource - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-tls13-worker-debuginfo - update to 2.4.51-35.69.1
apache2-utils - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-tls13-prefork-debuginfo - update to 2.4.51-35.69.1
apache2-worker-debuginfo - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-debuginfo - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-tls13-devel - update to 2.4.51-35.69.1
apache2-tls13-worker - update to 2.4.51-35.69.1
apache2-tls13-utils - update to 2.4.51-35.69.1
apache2-utils-debuginfo - addressed in versions 2.4.51-35.69.1, 2.4.51-150200.3.82.1, 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-tls13-example-pages - update to 2.4.51-35.69.1
apache2-event-debuginfo - addressed in versions 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-event - addressed in versions 2.4.51-150400.6.46.1, 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1, 2.4.66-150400.6.57.1
apache2-manual - update to 2.4.58-150600.5.35.1
apache2-worker-debugsource - addressed in versions 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1
apache2-prefork-debugsource - addressed in versions 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1
apache2-utils-debugsource - addressed in versions 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1
apache2-event-debugsource - addressed in versions 2.4.58-150600.5.35.1, 2.4.62-150700.4.3.1
httpd - update to 2.4.64-1.fc41

• Exploit #12218 - CVE-2025-23048-POC (January 4, 2026)

• https://downloads.apache.org/httpd/CHANGES_2.4
• https://lists.apache.org/thread/xdzb3wztgfr8hk8r725tvv2hm8zj8dnr

• Multiple vulnerabilities in Apache HTTP Server
• Ubuntu update for apache2
• cPanel EasyApache4 update for Apache HTTP Server
• SUSE update for apache2
• SUSE update for apache2
• SUSE update for apache2
• SUSE update for apache2
• SUSE update for apache2
• Ubuntu update for apache2
• Red Hat Enterprise Linux 9 update for httpd
• Red Hat Enterprise Linux 9 update for httpd
• Red Hat Enterprise Linux 9 update for httpd
• Tenable Security Center update for third-party components
• Red Hat Enterprise Linux 10 update for httpd
• Red Hat Enterprise Linux 8 update for the httpd:2.4 module
• openEuler 24.03 LTS SP2 update for httpd
• openEuler 24.03 LTS SP1 update for httpd
• openEuler 22.03 LTS SP4 update for httpd
• openEuler 22.03 LTS SP3 update for httpd
• openEuler 20.03 LTS SP4 update for httpd
• Red Hat Enterprise Linux 8 update for the httpd:2.4 module
• Red Hat Enterprise Linux 8 update for the httpd:2.4 module
• Anolis OS update for httpd:2.4 module
• openEuler 24.03 LTS update for httpd
• Fedora 41 update for httpd
• Red Hat Enterprise Linux 8 update for the httpd:2.4 module
• Multiple vulnerabilities in IBM Total Storage Service Console (TSSC) / TS4500 IMC
• Multiple vulnerabilities in IBM Power HMC
• Multiple vulnerabilities in IBM QRadar SIEM
• Multiple vulnerabilities in Oracle HTTP Server
• Juniper Secure Analytics update for third-party components
• SUSE update for apache2