CVE-2025-23048

EUVD-2025-21018
In some mod_ssl configurations on Apache HTTP Server 2.4.35 through to 2.4.63, an access control bypass by trusted clients is possible using TLS 1.3 session resumption.

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.1 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 18%
Affected Products (NVD)
VendorProductVersion
apachehttp_server
2.4.35 ≤
𝑥
< 2.4.64
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
apache2
bookworm
2.4.67-1~deb12u2
fixed
bookworm (security)
2.4.67-1~deb12u2
fixed
bullseye
vulnerable
bullseye (security)
2.4.67-1~deb11u1
fixed
forky
2.4.67-1
fixed
sid
2.4.67-2
fixed
trixie
2.4.67-1~deb13u2
fixed
trixie (security)
2.4.67-1~deb13u2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
apache2
bionic
Fixed 2.4.29-1ubuntu4.27+esm6
released
focal
Fixed 2.4.41-4ubuntu3.23+esm2
released
jammy
Fixed 2.4.52-1ubuntu4.15
released
noble
Fixed 2.4.58-1ubuntu8.7
released
plucky
Fixed 2.4.63-1ubuntu1.1
released
questing
Fixed 2.4.64-1ubuntu1
released
resolute
Fixed 2.4.64-1ubuntu1
released
trusty
not-affected
xenial
Fixed 2.4.18-2ubuntu3.17+esm16
released
openSUSE logo
openSUSE / SLES Releases
openSUSE Product
Release
apache2
suse enterprise desktop 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise desktop 15 SP7
2.4.62-150700.4.3.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise sap 15 SP7
2.4.62-150700.4.3.1
fixed
suse enterprise server 12 SP3
2.4.51-29.128.1
fixed
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
suse enterprise server 15 SP2
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP3
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise server 15 SP7
2.4.62-150700.4.3.1
fixed
apache2-devel
suse enterprise sap 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise sap 15 SP7
2.4.62-150700.4.3.1
fixed
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
suse enterprise server 15 SP2
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP3
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise server 15 SP7
2.4.62-150700.4.3.1
fixed
apache2-doc
suse enterprise sap 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP6
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP7
2.4.51-150400.6.46.1
fixed
suse enterprise server 12 SP3
2.4.51-29.128.1
fixed
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
suse enterprise server 15 SP2
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP3
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP6
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP7
2.4.51-150400.6.46.1
fixed
apache2-example-pages
suse enterprise server 12 SP3
2.4.51-29.128.1
fixed
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
apache2-prefork
suse enterprise desktop 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise desktop 15 SP7
2.4.62-150700.4.3.1
fixed
suse enterprise sap 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise sap 15 SP7
2.4.62-150700.4.3.1
fixed
suse enterprise server 12 SP3
2.4.51-29.128.1
fixed
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
suse enterprise server 15 SP2
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP3
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise server 15 SP7
2.4.62-150700.4.3.1
fixed
apache2-tls13
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
apache2-tls13-devel
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
apache2-tls13-doc
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
apache2-tls13-example-pages
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
apache2-tls13-prefork
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
apache2-tls13-utils
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
apache2-tls13-worker
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
apache2-utils
suse enterprise sap 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise sap 15 SP7
2.4.62-150700.4.3.1
fixed
suse enterprise server 12 SP3
2.4.51-29.128.1
fixed
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
suse enterprise server 15 SP2
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP3
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise server 15 SP7
2.4.62-150700.4.3.1
fixed
apache2-worker
suse enterprise sap 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise sap 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise sap 15 SP7
2.4.62-150700.4.3.1
fixed
suse enterprise server 12 SP3
2.4.51-29.128.1
fixed
suse enterprise server 12 SP5
2.4.51-35.69.1
fixed
suse enterprise server 15 SP2
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP3
2.4.51-150200.3.82.1
fixed
suse enterprise server 15 SP4
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP5
2.4.51-150400.6.46.1
fixed
suse enterprise server 15 SP6
2.4.58-150600.5.35.1
fixed
suse enterprise server 15 SP7
2.4.62-150700.4.3.1
fixed
Red Hat logo
Red Hat Enterprise Linux Releases
Red Hat Product
Release
httpd
RHEL 9
0:2.4.62-4.el9_6.4
fixed
httpd-core
RHEL 9
0:2.4.62-4.el9_6.4
fixed
httpd-devel
RHEL 9
0:2.4.62-4.el9_6.4
fixed
httpd-filesystem
RHEL 9
0:2.4.62-4.el9_6.4
fixed
httpd-manual
RHEL 9
0:2.4.62-4.el9_6.4
fixed
httpd-tools
RHEL 9
0:2.4.62-4.el9_6.4
fixed
mod
RHEL 9
1:2.4.62-4.el9_6.4
fixed
Common Weakness Enumeration
References
https://httpd.apache.org/security/vulnerabilities_24.html
http://www.openwall.com/lists/oss-security/2025/07/10/2
http://www.openwall.com/lists/oss-security/2025/07/10/8
https://lists.debian.org/debian-lts-announce/2025/08/msg00009.html