SUSE-SU-2026:2103-1: important: Security update for apache2
SLE-UPDATES
null at suse.de
Thu May 28 20:30:44 UTC 2026
# Security update for apache2
Announcement ID: SUSE-SU-2026:2103-1
Release Date: 2026-05-28T12:34:10Z
Rating: important
References:
* bsc#1263935
* bsc#1263950
* bsc#1263951
* bsc#1263952
* bsc#1263953
* bsc#1263954
* bsc#1263955
* bsc#1263956
* bsc#1263957
* bsc#1264150
* bsc#1264163
Cross-References:
* CVE-2026-23918
* CVE-2026-24072
* CVE-2026-28780
* CVE-2026-29168
* CVE-2026-29169
* CVE-2026-33006
* CVE-2026-33007
* CVE-2026-33523
* CVE-2026-33857
* CVE-2026-34032
* CVE-2026-34059
CVSS scores:
* CVE-2026-23918 ( SUSE ): 9.2
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-23918 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-23918 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-24072 ( SUSE ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
* CVE-2026-24072 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-28780 ( SUSE ): 8.3
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
* CVE-2026-28780 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:H
* CVE-2026-28780 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-29168 ( SUSE ): 8.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-29168 ( SUSE ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-29168 ( NVD ): 7.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
* CVE-2026-29169 ( SUSE ): 8.2
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-29169 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-29169 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-33006 ( SUSE ): 9.1
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-33006 ( SUSE ): 7.4 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-33006 ( NVD ): 4.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N
* CVE-2026-33007 ( SUSE ): 6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
* CVE-2026-33007 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2026-33007 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2026-33523 ( SUSE ): 9.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:H/SI:H/SA:N
* CVE-2026-33523 ( SUSE ): 8.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
* CVE-2026-33523 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
* CVE-2026-33857 ( SUSE ): 6.9
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
* CVE-2026-33857 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
* CVE-2026-33857 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
* CVE-2026-34032 ( SUSE ): 8.8
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-34032 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
* CVE-2026-34032 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
* CVE-2026-34059 ( SUSE ): 8.8
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-34059 ( SUSE ): 8.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
* CVE-2026-34059 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Products:
* openSUSE Leap 15.6
* SUSE Linux Enterprise Server 15 SP6
* SUSE Linux Enterprise Server 15 SP6 LTSS
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
An update that solves 11 vulnerabilities can now be installed.
## Description:
This update for apache2 fixes the following issues
* CVE-2026-23918: http2: double free and possible RCE on early reset
(bsc#1263957).
* CVE-2026-24072: mod_rewrite elevation of privileges via ap_expr
(bsc#1263935).
* CVE-2026-28780: heap buffer overflow in `mod_proxy_ajp` via
`ajp_msg_check_header()` (bsc#1264163).
* CVE-2026-29168: allocation of resources without limits in `mod_md` via OCSP
response (bsc#1264150).
* CVE-2026-29169: NULL pointer dereference in `mod_dav_lock` allows server
crash via malicious requests (bsc#1263956).
* CVE-2026-33006: `mod_auth_digest` timing attack allows bypass of Digest
authentication (bsc#1263955).
* CVE-2026-33007: NULL pointer dereference in `mod_authn_socache` allows
unauthenticated remote user to crash a child processes (bsc#1263954).
* CVE-2026-33523: HTTP response splitting forwarding malicious status line
(bsc#1263953).
* CVE-2026-33857: off-by-one OOB reads in AJP getter functions (bsc#1263952).
* CVE-2026-34032: heap buffer overread in `mod_proxy_ajp` due to missing null-
termination check (bsc#1263951).
* CVE-2026-34059: heap buffer overread and memory disclosure via
`ajp_parse_data()` (bsc#1263950).
## Patch Instructions:
To install this SUSE update use the SUSE recommended installation methods like
YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:
* openSUSE Leap 15.6
zypper in -t patch SUSE-2026-2103=1
* SUSE Linux Enterprise Server 15 SP6 LTSS
zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2103=1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6
zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2103=1
## Package List:
* openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
* apache2-2.4.66-150600.5.52.1
* apache2-prefork-debuginfo-2.4.66-150600.5.52.1
* apache2-event-debugsource-2.4.66-150600.5.52.1
* apache2-worker-debuginfo-2.4.66-150600.5.52.1
* apache2-worker-debugsource-2.4.66-150600.5.52.1
* apache2-debuginfo-2.4.66-150600.5.52.1
* apache2-utils-debuginfo-2.4.66-150600.5.52.1
* apache2-event-debuginfo-2.4.66-150600.5.52.1
* apache2-utils-debugsource-2.4.66-150600.5.52.1
* apache2-devel-2.4.66-150600.5.52.1
* apache2-prefork-2.4.66-150600.5.52.1
* apache2-debugsource-2.4.66-150600.5.52.1
* apache2-event-2.4.66-150600.5.52.1
* apache2-utils-2.4.66-150600.5.52.1
* apache2-prefork-debugsource-2.4.66-150600.5.52.1
* apache2-worker-2.4.66-150600.5.52.1
* openSUSE Leap 15.6 (noarch)
* apache2-manual-2.4.66-150600.5.52.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
* apache2-2.4.66-150600.5.52.1
* apache2-prefork-debuginfo-2.4.66-150600.5.52.1
* apache2-worker-debuginfo-2.4.66-150600.5.52.1
* apache2-worker-debugsource-2.4.66-150600.5.52.1
* apache2-debuginfo-2.4.66-150600.5.52.1
* apache2-utils-debuginfo-2.4.66-150600.5.52.1
* apache2-utils-debugsource-2.4.66-150600.5.52.1
* apache2-devel-2.4.66-150600.5.52.1
* apache2-prefork-2.4.66-150600.5.52.1
* apache2-debugsource-2.4.66-150600.5.52.1
* apache2-utils-2.4.66-150600.5.52.1
* apache2-prefork-debugsource-2.4.66-150600.5.52.1
* apache2-worker-2.4.66-150600.5.52.1
* SUSE Linux Enterprise Server 15 SP6 LTSS (noarch)
* apache2-manual-2.4.66-150600.5.52.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
* apache2-2.4.66-150600.5.52.1
* apache2-prefork-debuginfo-2.4.66-150600.5.52.1
* apache2-worker-debuginfo-2.4.66-150600.5.52.1
* apache2-worker-debugsource-2.4.66-150600.5.52.1
* apache2-debuginfo-2.4.66-150600.5.52.1
* apache2-utils-debuginfo-2.4.66-150600.5.52.1
* apache2-utils-debugsource-2.4.66-150600.5.52.1
* apache2-devel-2.4.66-150600.5.52.1
* apache2-prefork-2.4.66-150600.5.52.1
* apache2-debugsource-2.4.66-150600.5.52.1
* apache2-utils-2.4.66-150600.5.52.1
* apache2-prefork-debugsource-2.4.66-150600.5.52.1
* apache2-worker-2.4.66-150600.5.52.1
* SUSE Linux Enterprise Server for SAP Applications 15 SP6 (noarch)
* apache2-manual-2.4.66-150600.5.52.1
## References:
* https://www.suse.com/security/cve/CVE-2026-23918.html
* https://www.suse.com/security/cve/CVE-2026-24072.html
* https://www.suse.com/security/cve/CVE-2026-28780.html
* https://www.suse.com/security/cve/CVE-2026-29168.html
* https://www.suse.com/security/cve/CVE-2026-29169.html
* https://www.suse.com/security/cve/CVE-2026-33006.html
* https://www.suse.com/security/cve/CVE-2026-33007.html
* https://www.suse.com/security/cve/CVE-2026-33523.html
* https://www.suse.com/security/cve/CVE-2026-33857.html
* https://www.suse.com/security/cve/CVE-2026-34032.html
* https://www.suse.com/security/cve/CVE-2026-34059.html
* https://bugzilla.suse.com/show_bug.cgi?id=1263935
* https://bugzilla.suse.com/show_bug.cgi?id=1263950
* https://bugzilla.suse.com/show_bug.cgi?id=1263951
* https://bugzilla.suse.com/show_bug.cgi?id=1263952
* https://bugzilla.suse.com/show_bug.cgi?id=1263953
* https://bugzilla.suse.com/show_bug.cgi?id=1263954
* https://bugzilla.suse.com/show_bug.cgi?id=1263955
* https://bugzilla.suse.com/show_bug.cgi?id=1263956
* https://bugzilla.suse.com/show_bug.cgi?id=1263957
* https://bugzilla.suse.com/show_bug.cgi?id=1264150
* https://bugzilla.suse.com/show_bug.cgi?id=1264163
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