SUSE-SU-2026:23003-1: critical: Security update for samba
SLE-SECURITY-UPDATES
null at suse.de
Tue Aug 11 12:31:04 UTC 2026
# Security update for samba
Announcement ID: SUSE-SU-2026:23003-1
Release Date: 2026-08-06T09:24:50Z
Rating: critical
References:
* bsc#1261158
* bsc#1261159
* bsc#1261160
* bsc#1261161
* bsc#1261163
* bsc#1261188
* bsc#1271469
* bsc#1271672
* bsc#1271673
* bsc#1271674
* bsc#1271675
* bsc#1271676
* bsc#1271677
* bsc#1273189
Cross-References:
* CVE-2026-15779
* CVE-2026-1933
* CVE-2026-2340
* CVE-2026-3012
* CVE-2026-3238
* CVE-2026-4408
* CVE-2026-4480
* CVE-2026-58216
* CVE-2026-58218
* CVE-2026-58221
* CVE-2026-58222
* CVE-2026-58224
* CVE-2026-6949
CVSS scores:
* CVE-2026-15779 ( SUSE ): 6.8
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-15779 ( SUSE ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
* CVE-2026-15779 ( NVD ): 6.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
* CVE-2026-1933 ( SUSE ): 7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
* CVE-2026-1933 ( SUSE ): 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
* CVE-2026-1933 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
* CVE-2026-1933 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-1933 ( NVD ): 7.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
* CVE-2026-2340 ( SUSE ): 7.1
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-2340 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-2340 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
* CVE-2026-3012 ( SUSE ): 7.6
CVSS:4.0/AV:A/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-3012 ( SUSE ): 8.0 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
* CVE-2026-3012 ( NVD ): 8.0 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
* CVE-2026-3012 ( NVD ): 6.8 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
* CVE-2026-3012 ( NVD ): 8.0 CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:N
* CVE-2026-3238 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-3238 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-3238 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-4408 ( SUSE ): 9.4
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
* CVE-2026-4408 ( SUSE ): 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-4408 ( NVD ): 9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-4408 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-4408 ( NVD ): 9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-4480 ( SUSE ): 10.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
* CVE-2026-4480 ( SUSE ): 10.0 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-4480 ( NVD ): 9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-4480 ( NVD ): 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-4480 ( NVD ): 9.0 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
* CVE-2026-58216 ( SUSE ): 6.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-58216 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-58216 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
* CVE-2026-58218 ( 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-2026-58218 ( SUSE ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2026-58218 ( NVD ): 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
* CVE-2026-58221 ( SUSE ): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-58221 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-58222 ( SUSE ): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
* CVE-2026-58222 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-58222 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
* CVE-2026-58224 ( SUSE ): 7.1
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N
* CVE-2026-58224 ( SUSE ): 7.1 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
* CVE-2026-6949 ( SUSE ): 8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
* CVE-2026-6949 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products:
* SUSE Linux Micro 6.2
An update that solves 13 vulnerabilities and has one fix can now be installed.
## Description:
This update for samba fixes the following issues:
Update to 4.22.11.
Security issues fixed:
* CVE-2026-1933: missing access check on reparse point operations allows
unauthorized users to modify the `user.SmbReparse` xattr (bsc#1261188).
* CVE-2026-2340: WORM vfs module does not block directory modification and
allows file changes by any user with write access (bsc#1261158).
* CVE-2026-3012: auto-enrolment GPO installing CA certificate over http
without verification (bsc#1261159).
* CVE-2026-3238: NULL pointer dereference in the WINS server compoenent of the
AD domain controller code can lead to crash via crafted UDP packet
(bsc#1261160).
* CVE-2026-4408: improper escaping allows for remote command execution via the
DCE/RPC SAMR server (bsc#1261163).
* CVE-2026-4480: improper escaping allows for unauthenticated remote code
execution via the printing subsystem (bsc#1261161).
* CVE-2026-6949: TSIG packet with crafted name compression can crash internal
DNS server (bsc#1271672).
* CVE-2026-15779: `pam_winbind` module with `mkhomedir` set allows `chown` of
critical system paths without validation (bsc#1271469).
* CVE-2026-58216: 6-byte heap OOB read in packet parser of the `kpasswd`
service (bsc#1271674).
* CVE-2026-58218: DNS TKEY negotiation stores unauthenticated GSS contexts in
a fixed FIFO before authentication completes (bsc#1271675).
* CVE-2026-58221: authenticated LDAP access to internal LDB special DNs
permits domain takeover (bsc#1271676).
* CVE-2026-58222: LDAP Compare filter injection and trusted-request confusion
disclose protected attributes (bsc#1271677).
* CVE-2026-58224: heap OOB read due to unchecked packet length fields in CTDB
(bsc#1271673).
Other updates and bugfixes:
* `samba-tool`: do not complain of no subcommand with `-V` (bsc#1273189,
bso#15770).
* Add `python3-cryptography` and `python3-requests` requirements for `samba-
python3`.
## 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:
* SUSE Linux Micro 6.2
zypper in -t patch SUSE-SL-Micro-6.2-1439=1
## Package List:
* SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)
* samba-debugsource-4.22.11+git.552.66cfeb7de0a-160000.1.1
* samba-client-libs-4.22.11+git.552.66cfeb7de0a-160000.1.1
* libldb2-4.22.11+git.552.66cfeb7de0a-160000.1.1
* libldb2-debuginfo-4.22.11+git.552.66cfeb7de0a-160000.1.1
* samba-client-libs-debuginfo-4.22.11+git.552.66cfeb7de0a-160000.1.1
* samba-debuginfo-4.22.11+git.552.66cfeb7de0a-160000.1.1
## References:
* https://www.suse.com/security/cve/CVE-2026-15779.html
* https://www.suse.com/security/cve/CVE-2026-1933.html
* https://www.suse.com/security/cve/CVE-2026-2340.html
* https://www.suse.com/security/cve/CVE-2026-3012.html
* https://www.suse.com/security/cve/CVE-2026-3238.html
* https://www.suse.com/security/cve/CVE-2026-4408.html
* https://www.suse.com/security/cve/CVE-2026-4480.html
* https://www.suse.com/security/cve/CVE-2026-58216.html
* https://www.suse.com/security/cve/CVE-2026-58218.html
* https://www.suse.com/security/cve/CVE-2026-58221.html
* https://www.suse.com/security/cve/CVE-2026-58222.html
* https://www.suse.com/security/cve/CVE-2026-58224.html
* https://www.suse.com/security/cve/CVE-2026-6949.html
* https://bugzilla.suse.com/show_bug.cgi?id=1261158
* https://bugzilla.suse.com/show_bug.cgi?id=1261159
* https://bugzilla.suse.com/show_bug.cgi?id=1261160
* https://bugzilla.suse.com/show_bug.cgi?id=1261161
* https://bugzilla.suse.com/show_bug.cgi?id=1261163
* https://bugzilla.suse.com/show_bug.cgi?id=1261188
* https://bugzilla.suse.com/show_bug.cgi?id=1271469
* https://bugzilla.suse.com/show_bug.cgi?id=1271672
* https://bugzilla.suse.com/show_bug.cgi?id=1271673
* https://bugzilla.suse.com/show_bug.cgi?id=1271674
* https://bugzilla.suse.com/show_bug.cgi?id=1271675
* https://bugzilla.suse.com/show_bug.cgi?id=1271676
* https://bugzilla.suse.com/show_bug.cgi?id=1271677
* https://bugzilla.suse.com/show_bug.cgi?id=1273189
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