Security update for samba

Announcement ID:	SUSE-SU-2026:2074-1
Release Date:	2026-05-26T12:36:10Z
Rating:	critical
References:	bsc#1261158 bsc#1261159 bsc#1261160 bsc#1261161 bsc#1261163
Cross-References:	CVE-2026-2340 CVE-2026-3012 CVE-2026-3238 CVE-2026-4408 CVE-2026-4480
CVSS scores:	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-2026-3012 ( 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-2026-3238 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVE-2026-4408 ( 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-2026-4480 ( 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 ): 8.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.6 SUSE Linux Enterprise High Availability Extension 15 SP6 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 five vulnerabilities can now be installed.

Description:

This update for samba fixes the following issues

• CVE-2026-2340: vfs_worm does not block directory modification (bsc#1261158).
• CVE-2026-3012: group policy certificate enrollment uses http: // without validation (bsc#1261159).
• CVE-2026-3238: unauthenticated udp packet crashes AD DC nbt server (bsc#1261160).
• CVE-2026-4408: Remote Code Execution in SAMR (bsc#1261163).
• CVE-2026-4480: Unauthenticated Remote Code Execution (bsc#1261161).

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-2026-2074=1 openSUSE-SLE-15.6-2026-2074=1
• SUSE Linux Enterprise High Availability Extension 15 SP6
  zypper in -t patch SUSE-SLE-Product-HA-15-SP6-2026-2074=1
• SUSE Linux Enterprise Server 15 SP6 LTSS
  zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-2074=1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6
  zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-2074=1

Package List:

• openSUSE Leap 15.6 (x86_64)
  • samba-libs-python3-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-devel-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
• openSUSE Leap 15.6 (aarch64 ppc64le s390x x86_64 i586)
  • ctdb-pcp-pmda-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • ctdb-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-dcerpc-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • ctdb-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ldb-ldap-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-test-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy-python3-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-dcerpc-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-tool-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ldb-ldap-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-gpupdate-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-test-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-debugsource-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • ctdb-pcp-pmda-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
• openSUSE Leap 15.6 (noarch)
  • samba-doc-4.19.8+git.473.51d12fd320c-150600.3.26.1
• openSUSE Leap 15.6 (aarch64_ilp32)
  • samba-client-64bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-64bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-64bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-64bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-64bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-64bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-64bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-64bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-64bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-64bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-64bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-devel-64bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-64bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
• openSUSE Leap 15.6 (aarch64 x86_64)
  • samba-ceph-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ceph-4.19.8+git.473.51d12fd320c-150600.3.26.1
• SUSE Linux Enterprise High Availability Extension 15 SP6 (aarch64 ppc64le s390x x86_64)
  • ctdb-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • ctdb-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-debugsource-4.19.8+git.473.51d12fd320c-150600.3.26.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 ppc64le s390x x86_64)
  • samba-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-dcerpc-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ldb-ldap-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy-python3-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-dcerpc-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-tool-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ldb-ldap-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-gpupdate-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-debugsource-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (aarch64 x86_64)
  • samba-ceph-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ceph-4.19.8+git.473.51d12fd320c-150600.3.26.1
• SUSE Linux Enterprise Server 15 SP6 LTSS (x86_64)
  • samba-winbind-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (ppc64le x86_64)
  • samba-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-dcerpc-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ldb-ldap-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy-python3-devel-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-dcerpc-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-tool-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ldb-ldap-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-gpupdate-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-debugsource-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • libsamba-policy0-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-python3-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-python3-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
• SUSE Linux Enterprise Server for SAP Applications 15 SP6 (x86_64)
  • samba-ceph-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-ceph-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-libs-32bit-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-winbind-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1
  • samba-client-libs-32bit-debuginfo-4.19.8+git.473.51d12fd320c-150600.3.26.1

References:

• 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://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